diff --git a/ports/RGSX/__main__.py b/ports/RGSX/__main__.py
index fcc9e76..e431c19 100644
--- a/ports/RGSX/__main__.py
+++ b/ports/RGSX/__main__.py
@@ -27,7 +27,7 @@ from display import (
     draw_confirm_dialog, draw_redownload_game_cache_dialog, draw_popup, draw_gradient,
     THEME_COLORS
 )
-from language import handle_language_menu_events, _
+from language import _
 from network import test_internet, download_rom, is_1fichier_url, download_from_1fichier, check_for_updates
 from controls import handle_controls, validate_menu_state, process_key_repeats, get_emergency_controls
 from controls_mapper import map_controls, draw_controls_mapping, get_actions
@@ -200,7 +200,7 @@ else:
     config.joystick = True
     config.keyboard = False
     print(f"Joysticks détectés: {joystick_names}")
-    logger.debug(f"Joysticks détectés: {joystick_names}, utilisation du joystick par défaut.")
+    logger.debug(f"Joysticks détectés: {joystick_names}")
     for idx, name in enumerate(joystick_names):
         lname = name.lower()
         if ("xbox" in lname) or ("x-box" in lname) or ("xinput" in lname) or ("microsoft x-box" in lname) or ("x-box 360" in lname) or ("360" in lname):
@@ -244,12 +244,6 @@ else:
         logger.debug("Aucun contrôleur spécifique détecté, utilisation du profil générique")
 
 
-# Vérification des dossiers pour le débogage
-logger.debug(f"SYSTEM_FOLDER: {config.SYSTEM_FOLDER}")
-logger.debug(f"ROMS_FOLDER: {config.ROMS_FOLDER}")
-logger.debug(f"SAVE_FOLDER: {config.SAVE_FOLDER}")
-logger.debug(f"APP_FOLDER: {config.APP_FOLDER}")
-
 
 # Initialisation des variables de grille
 config.current_page = 0
@@ -589,49 +583,79 @@ async def main():
                                 logger.error("Clé API 1fichier absente")
                                 config.pending_download = None
                                 continue
-                            is_supported, message, is_zip_non_supported = check_extension_before_download(url, platform, game_name)
-                            if not is_supported:
-                                config.pending_download = (url, platform, game_name, is_zip_non_supported)
-                                config.menu_state = "extension_warning"
-                                config.extension_confirm_selection = 0
+                            pending = check_extension_before_download(url, platform, game_name)
+                            if not pending:
+                                config.menu_state = "error"
+                                config.error_message = _("error_invalid_download_data") if _ else "Invalid download data"
                                 config.needs_redraw = True
-                                logger.debug(f"Extension non reconnue pour lien 1fichier, passage à extension_warning pour {game_name}")
-                                # Supprimer l'entrée temporaire si erreur
+                                logger.error(f"check_extension_before_download a échoué pour {game_name}")
                                 config.history.pop()
                             else:
-                                config.previous_menu_state = config.menu_state
-                                logger.debug(f"Previous menu state défini: {config.previous_menu_state}")
-                                # Lancer le téléchargement dans une tâche asynchrone
-                                task_id = str(pygame.time.get_ticks())
-                                config.download_tasks[task_id] = (
-                                    asyncio.create_task(download_from_1fichier(url, platform, game_name, is_zip_non_supported)),
-                                    url, game_name, platform
-                                )
-                                config.menu_state = "history"  # Passer à l'historique
-                                config.needs_redraw = True
-                                logger.debug(f"Téléchargement 1fichier démarré pour {game_name}, passage à l'historique")
+                                from utils import is_extension_supported, load_extensions_json, sanitize_filename
+                                from rgsx_settings import get_allow_unknown_extensions
+                                is_supported = is_extension_supported(sanitize_filename(game_name), platform, load_extensions_json())
+                                zip_ok = bool(pending[3])
+                                allow_unknown = False
+                                try:
+                                    allow_unknown = get_allow_unknown_extensions()
+                                except Exception:
+                                    allow_unknown = False
+                                if (not is_supported and not zip_ok) and not allow_unknown:
+                                    config.pending_download = pending
+                                    config.menu_state = "extension_warning"
+                                    config.extension_confirm_selection = 0
+                                    config.needs_redraw = True
+                                    logger.debug(f"Extension non reconnue pour lien 1fichier, passage à extension_warning pour {game_name}")
+                                    config.history.pop()
+                                else:
+                                    config.previous_menu_state = config.menu_state
+                                    logger.debug(f"Previous menu state défini: {config.previous_menu_state}")
+                                    # Lancer le téléchargement dans une tâche asynchrone
+                                    task_id = str(pygame.time.get_ticks())
+                                    config.download_tasks[task_id] = (
+                                        asyncio.create_task(download_from_1fichier(url, platform, game_name, zip_ok)),
+                                        url, game_name, platform
+                                    )
+                                    config.menu_state = "history"  # Passer à l'historique
+                                    config.needs_redraw = True
+                                    logger.debug(f"Téléchargement 1fichier démarré pour {game_name}, passage à l'historique")
                         else:
-                            is_supported, message, is_zip_non_supported = check_extension_before_download(url, platform, game_name)
-                            if not is_supported:
-                                config.pending_download = (url, platform, game_name, is_zip_non_supported)
-                                config.menu_state = "extension_warning"
-                                config.extension_confirm_selection = 0
+                            pending = check_extension_before_download(url, platform, game_name)
+                            if not pending:
+                                config.menu_state = "error"
+                                config.error_message = _("error_invalid_download_data") if _ else "Invalid download data"
                                 config.needs_redraw = True
-                                logger.debug(f"Extension non reconnue, passage à extension_warning pour {game_name}")
-                                # Supprimer l'entrée temporaire si erreur
+                                logger.error(f"check_extension_before_download a échoué pour {game_name}")
                                 config.history.pop()
                             else:
-                                config.previous_menu_state = config.menu_state
-                                logger.debug(f"Previous menu state défini: {config.previous_menu_state}")
-                                # Lancer le téléchargement dans une tâche asynchrone
-                                task_id = str(pygame.time.get_ticks())
-                                config.download_tasks[task_id] = (
-                                    asyncio.create_task(download_rom(url, platform, game_name, is_zip_non_supported)),
-                                    url, game_name, platform
-                                )
-                                config.menu_state = "history"  # Passer à l'historique
-                                config.needs_redraw = True
-                                logger.debug(f"Téléchargement démarré pour {game_name}, passage à l'historique")
+                                from utils import is_extension_supported, load_extensions_json, sanitize_filename
+                                from rgsx_settings import get_allow_unknown_extensions
+                                is_supported = is_extension_supported(sanitize_filename(game_name), platform, load_extensions_json())
+                                zip_ok = bool(pending[3])
+                                allow_unknown = False
+                                try:
+                                    allow_unknown = get_allow_unknown_extensions()
+                                except Exception:
+                                    allow_unknown = False
+                                if (not is_supported and not zip_ok) and not allow_unknown:
+                                    config.pending_download = pending
+                                    config.menu_state = "extension_warning"
+                                    config.extension_confirm_selection = 0
+                                    config.needs_redraw = True
+                                    logger.debug(f"Extension non reconnue, passage à extension_warning pour {game_name}")
+                                    config.history.pop()
+                                else:
+                                    config.previous_menu_state = config.menu_state
+                                    logger.debug(f"Previous menu state défini: {config.previous_menu_state}")
+                                    # Lancer le téléchargement dans une tâche asynchrone
+                                    task_id = str(pygame.time.get_ticks())
+                                    config.download_tasks[task_id] = (
+                                        asyncio.create_task(download_rom(url, platform, game_name, zip_ok)),
+                                        url, game_name, platform
+                                    )
+                                    config.menu_state = "history"  # Passer à l'historique
+                                    config.needs_redraw = True
+                                    logger.debug(f"Téléchargement démarré pour {game_name}, passage à l'historique")
                 elif action == "redownload" and config.menu_state == "history" and config.history:
                     entry = config.history[config.current_history_item]
                     platform = entry["platform"]
@@ -654,17 +678,32 @@ async def main():
                                     logger.error("Clé API 1fichier absente")
                                     config.pending_download = None
                                     continue
-                                is_supported, message, is_zip_non_supported = check_extension_before_download(url, platform, game_name)
-                                if not is_supported:
-                                    config.pending_download = (url, platform, game_name, is_zip_non_supported)
-                                    config.menu_state = "extension_warning"
-                                    config.extension_confirm_selection = 0
+                                pending = check_extension_before_download(url, platform, game_name)
+                                if not pending:
+                                    config.menu_state = "error"
+                                    config.error_message = _("error_invalid_download_data") if _ else "Invalid download data"
                                     config.needs_redraw = True
-                                    logger.debug(f"Extension non reconnue pour lien 1fichier, passage à extension_warning pour {game_name}")
+                                    logger.error(f"check_extension_before_download a échoué pour {game_name}")
                                 else:
-                                    config.previous_menu_state = config.menu_state
-                                    logger.debug(f"Previous menu state défini: {config.previous_menu_state}")
-                                    success, message = download_from_1fichier(url, platform, game_name, is_zip_non_supported)
+                                    from utils import is_extension_supported, load_extensions_json, sanitize_filename
+                                    from rgsx_settings import get_allow_unknown_extensions
+                                    is_supported = is_extension_supported(sanitize_filename(game_name), platform, load_extensions_json())
+                                    zip_ok = bool(pending[3])
+                                    allow_unknown = False
+                                    try:
+                                        allow_unknown = get_allow_unknown_extensions()
+                                    except Exception:
+                                        allow_unknown = False
+                                    if (not is_supported and not zip_ok) and not allow_unknown:
+                                        config.pending_download = pending
+                                        config.menu_state = "extension_warning"
+                                        config.extension_confirm_selection = 0
+                                        config.needs_redraw = True
+                                        logger.debug(f"Extension non reconnue pour lien 1fichier, passage à extension_warning pour {game_name}")
+                                    else:
+                                        config.previous_menu_state = config.menu_state
+                                        logger.debug(f"Previous menu state défini: {config.previous_menu_state}")
+                                        success, message = download_from_1fichier(url, platform, game_name, zip_ok)
                                     # Ancien popup download_result supprimé : retour direct à l'historique
                                     config.download_result_message = message
                                     config.download_result_error = not success
@@ -674,17 +713,32 @@ async def main():
                                     config.needs_redraw = True
                                     logger.debug(f"Retéléchargement 1fichier terminé pour {game_name}, succès={success}, message={message}, retour direct history")
                             else:
-                                is_supported, message, is_zip_non_supported = check_extension_before_download(url, platform, game_name)
-                                if not is_supported:
-                                    config.pending_download = (url, platform, game_name, is_zip_non_supported)
-                                    config.menu_state = "extension_warning"
-                                    config.extension_confirm_selection = 0
+                                pending = check_extension_before_download(url, platform, game_name)
+                                if not pending:
+                                    config.menu_state = "error"
+                                    config.error_message = _("error_invalid_download_data") if _ else "Invalid download data"
                                     config.needs_redraw = True
-                                    logger.debug(f"Extension non reconnue pour retéléchargement, passage à extension_warning pour {game_name}")
+                                    logger.error(f"check_extension_before_download a échoué pour {game_name}")
                                 else:
-                                    config.previous_menu_state = config.menu_state
-                                    logger.debug(f"Previous menu state défini: {config.previous_menu_state}")
-                                    success, message = download_rom(url, platform, game_name, is_zip_non_supported)
+                                    from utils import is_extension_supported, load_extensions_json, sanitize_filename
+                                    from rgsx_settings import get_allow_unknown_extensions
+                                    is_supported = is_extension_supported(sanitize_filename(game_name), platform, load_extensions_json())
+                                    zip_ok = bool(pending[3])
+                                    allow_unknown = False
+                                    try:
+                                        allow_unknown = get_allow_unknown_extensions()
+                                    except Exception:
+                                        allow_unknown = False
+                                    if (not is_supported and not zip_ok) and not allow_unknown:
+                                        config.pending_download = pending
+                                        config.menu_state = "extension_warning"
+                                        config.extension_confirm_selection = 0
+                                        config.needs_redraw = True
+                                        logger.debug(f"Extension non reconnue pour retéléchargement, passage à extension_warning pour {game_name}")
+                                    else:
+                                        config.previous_menu_state = config.menu_state
+                                        logger.debug(f"Previous menu state défini: {config.previous_menu_state}")
+                                        success, message = download_rom(url, platform, game_name, zip_ok)
                                     config.download_result_message = message
                                     config.download_result_error = not success
                                     config.download_progress.clear()
diff --git a/ports/RGSX/config.py b/ports/RGSX/config.py
index 237a007..1d60f00 100644
--- a/ports/RGSX/config.py
+++ b/ports/RGSX/config.py
@@ -13,7 +13,7 @@ except Exception:
     pygame = None  # type: ignore
 
 # Version actuelle de l'application
-app_version = "2.2.0.3"
+app_version = "2.2.0.5"
 
 def get_operating_system():
     """Renvoie le nom du système d'exploitation."""
diff --git a/ports/RGSX/controls.py b/ports/RGSX/controls.py
index 2267b3f..25127e2 100644
--- a/ports/RGSX/controls.py
+++ b/ports/RGSX/controls.py
@@ -562,7 +562,13 @@ def handle_controls(event, sources, joystick, screen):
                                     load_extensions_json()
                                 )
                                 zip_ok = bool(config.pending_download[3])  # True only if archive and system known
-                                if not is_supported and not zip_ok:
+                                allow_unknown = False
+                                try:
+                                    from rgsx_settings import get_allow_unknown_extensions
+                                    allow_unknown = get_allow_unknown_extensions()
+                                except Exception:
+                                    allow_unknown = False
+                                if (not is_supported and not zip_ok) and not allow_unknown:
                                     # Stocker comme pending sans dupliquer l'entrée
                                     config.batch_pending_game = (url, platform, game_name, config.pending_download[3])
                                     config.previous_menu_state = config.menu_state
@@ -636,7 +642,13 @@ def handle_controls(event, sources, joystick, screen):
                                     load_extensions_json()
                                 )
                                 zip_ok = bool(config.pending_download[3])
-                                if not is_supported and not zip_ok:
+                                allow_unknown = False
+                                try:
+                                    from rgsx_settings import get_allow_unknown_extensions
+                                    allow_unknown = get_allow_unknown_extensions()
+                                except Exception:
+                                    allow_unknown = False
+                                if (not is_supported and not zip_ok) and not allow_unknown:
                                     config.previous_menu_state = config.menu_state
                                     config.menu_state = "extension_warning"
                                     config.extension_confirm_selection = 0
@@ -669,7 +681,13 @@ def handle_controls(event, sources, joystick, screen):
                                     load_extensions_json()
                                 )
                                 zip_ok = bool(config.pending_download[3])
-                                if not is_supported and not zip_ok:
+                                allow_unknown = False
+                                try:
+                                    from rgsx_settings import get_allow_unknown_extensions
+                                    allow_unknown = get_allow_unknown_extensions()
+                                except Exception:
+                                    allow_unknown = False
+                                if (not is_supported and not zip_ok) and not allow_unknown:
                                     config.previous_menu_state = config.menu_state
                                     config.menu_state = "extension_warning"
                                     config.extension_confirm_selection = 0
@@ -688,7 +706,10 @@ def handle_controls(event, sources, joystick, screen):
                                     action = "download"
                             else:
                                 config.menu_state = "error"
-                                config.error_message = "Extension non supportée ou erreur de téléchargement"
+                                try:
+                                    config.error_message = _("error_invalid_download_data")
+                                except Exception:
+                                    config.error_message = "Invalid download data"
                                 config.pending_download = None
                                 config.needs_redraw = True
                                 logger.error(f"config.pending_download est None pour {game_name}")
@@ -759,7 +780,13 @@ def handle_controls(event, sources, joystick, screen):
                                         continue
                                     is_supported = is_extension_supported(sanitize_filename(game_name), platform, load_extensions_json())
                                     zip_ok = bool(config.pending_download[3])
-                                    if not is_supported and not zip_ok:
+                                    allow_unknown = False
+                                    try:
+                                        from rgsx_settings import get_allow_unknown_extensions
+                                        allow_unknown = get_allow_unknown_extensions()
+                                    except Exception:
+                                        allow_unknown = False
+                                    if (not is_supported and not zip_ok) and not allow_unknown:
                                         config.batch_pending_game = (url, platform, game_name, config.pending_download[3])
                                         config.previous_menu_state = config.menu_state
                                         config.menu_state = "extension_warning"
@@ -818,7 +845,13 @@ def handle_controls(event, sources, joystick, screen):
                                     continue
                                 is_supported = is_extension_supported(sanitize_filename(game_name), platform, load_extensions_json())
                                 zip_ok = bool(config.pending_download[3])
-                                if not is_supported and not zip_ok:
+                                allow_unknown = False
+                                try:
+                                    from rgsx_settings import get_allow_unknown_extensions
+                                    allow_unknown = get_allow_unknown_extensions()
+                                except Exception:
+                                    allow_unknown = False
+                                if (not is_supported and not zip_ok) and not allow_unknown:
                                     config.batch_pending_game = (url, platform, game_name, config.pending_download[3])
                                     config.previous_menu_state = config.menu_state
                                     config.menu_state = "extension_warning"
@@ -951,7 +984,10 @@ def handle_controls(event, sources, joystick, screen):
                                     action = "redownload"
                             else:
                                 config.menu_state = "error"
-                                config.error_message = "Extension non supportée ou erreur de retéléchargement"
+                                try:
+                                    config.error_message = _("error_invalid_download_data")
+                                except Exception:
+                                    config.error_message = "Invalid download data"
                                 config.pending_download = None
                                 config.needs_redraw = True
                                 logger.error(f"config.pending_download est None pour {game_name}")
@@ -1163,10 +1199,10 @@ def handle_controls(event, sources, joystick, screen):
         elif config.menu_state == "display_menu":
             sel = getattr(config, 'display_menu_selection', 0)
             if is_input_matched(event, "up"):
-                config.display_menu_selection = (sel - 1) % 4
+                config.display_menu_selection = (sel - 1) % 5
                 config.needs_redraw = True
             elif is_input_matched(event, "down"):
-                config.display_menu_selection = (sel + 1) % 4
+                config.display_menu_selection = (sel + 1) % 5
                 config.needs_redraw = True
             elif is_input_matched(event, "left") or is_input_matched(event, "right") or is_input_matched(event, "confirm"):
                 sel = getattr(config, 'display_menu_selection', 0)
@@ -1229,8 +1265,19 @@ def handle_controls(event, sources, joystick, screen):
                         config.needs_redraw = True
                     except Exception as e:
                         logger.error(f"Erreur toggle unsupported: {e}")
-                # 3: open filter platforms menu
-                elif sel == 3 and (is_input_matched(event, "confirm") or is_input_matched(event, "right")):
+                # 3: toggle allow unknown extensions
+                elif sel == 3 and (is_input_matched(event, "left") or is_input_matched(event, "right") or is_input_matched(event, "confirm")):
+                    try:
+                        from rgsx_settings import get_allow_unknown_extensions, set_allow_unknown_extensions
+                        current = get_allow_unknown_extensions()
+                        new_val = set_allow_unknown_extensions(not current)
+                        config.popup_message = _("menu_allow_unknown_ext_enabled") if new_val else _("menu_allow_unknown_ext_disabled")
+                        config.popup_timer = 3000
+                        config.needs_redraw = True
+                    except Exception as e:
+                        logger.error(f"Erreur toggle allow_unknown_extensions: {e}")
+                # 4: open filter platforms menu
+                elif sel == 4 and (is_input_matched(event, "confirm") or is_input_matched(event, "right")):
                     # Remember return target so the filter menu can go back to display
                     config.filter_return_to = "display_menu"
                     config.menu_state = "filter_platforms"
diff --git a/ports/RGSX/display.py b/ports/RGSX/display.py
index b27b2d6..d252724 100644
--- a/ports/RGSX/display.py
+++ b/ports/RGSX/display.py
@@ -1130,7 +1130,13 @@ def draw_extension_warning(screen):
     if is_zip:
         message = _("extension_warning_zip").format(game_name)
     else:
-        message = _("extension_warning_unsupported").format(game_name)
+        # Ajout d'un indice pour activer le téléchargement des extensions inconnues
+        try:
+            hint = _("extension_warning_enable_unknown_hint")
+        except Exception:
+            hint = ""
+        core = _("extension_warning_unsupported").format(game_name)
+        message = core if not hint else f"{core}{hint}"
 
     max_width = config.screen_width - 80
     lines = wrap_text(message, config.font, max_width)
@@ -1269,14 +1275,16 @@ def draw_display_menu(screen):
     # États actuels
     layout_str = f"{getattr(config, 'GRID_COLS', 3)}x{getattr(config, 'GRID_ROWS', 4)}"
     font_scale = config.accessibility_settings.get("font_scale", 1.0)
-    from rgsx_settings import get_show_unsupported_platforms
+    from rgsx_settings import get_show_unsupported_platforms, get_allow_unknown_extensions
     show_unsupported = get_show_unsupported_platforms()
+    allow_unknown = get_allow_unknown_extensions()
 
     # Libellés
     options = [
         f"{_('display_layout')}: {layout_str}",
         _("accessibility_font_size").format(f"{font_scale:.1f}"),
         _("menu_show_unsupported_on") if show_unsupported else _("menu_show_unsupported_off"),
+        _("menu_allow_unknown_ext_on") if allow_unknown else _("menu_allow_unknown_ext_off"),
         _("menu_filter_platforms"),
     ]
 
diff --git a/ports/RGSX/languages/de.json b/ports/RGSX/languages/de.json
index 0e125be..46f60b5 100644
--- a/ports/RGSX/languages/de.json
+++ b/ports/RGSX/languages/de.json
@@ -58,6 +58,7 @@
     
     "extension_warning_zip": "Die Datei '{0}' ist ein Archiv und Batocera unterstützt keine Archive für dieses System. Die automatische Extraktion der Datei erfolgt nach dem Download, fortfahren?",
     "extension_warning_unsupported": "Die Dateierweiterung für '{0}' wird laut der Konfiguration es_systems.cfg von Batocera nicht unterstützt. Möchtest du fortfahren?",
+    "extension_warning_enable_unknown_hint": "\nUm diese Meldung auszublenden: \"Warnung bei unbekannter Erweiterung ausblenden\" in Pausenmenü > Anzeige aktivieren",
     
     "confirm_exit": "Anwendung beenden?",
     "confirm_clear_history": "Verlauf löschen?",
@@ -95,6 +96,10 @@
     "menu_show_unsupported_off": "Nicht unterstützte Systeme anzeigen: Nein",
     "menu_show_unsupported_enabled": "Sichtbarkeit nicht unterstützter Systeme aktiviert",
     "menu_show_unsupported_disabled": "Sichtbarkeit nicht unterstützter Systeme deaktiviert",
+    "menu_allow_unknown_ext_on": "Warnung bei unbekannter Erweiterung ausblenden: Ja",
+    "menu_allow_unknown_ext_off": "Warnung bei unbekannter Erweiterung ausblenden: Nein",
+    "menu_allow_unknown_ext_enabled": "Ausblenden der Warnung bei unbekannter Erweiterung aktiviert",
+    "menu_allow_unknown_ext_disabled": "Ausblenden der Warnung bei unbekannter Erweiterung deaktiviert",
     "menu_quit": "Beenden",
     
     "button_yes": "Ja",
diff --git a/ports/RGSX/languages/en.json b/ports/RGSX/languages/en.json
index e0b0a59..c4a9b26 100644
--- a/ports/RGSX/languages/en.json
+++ b/ports/RGSX/languages/en.json
@@ -58,6 +58,7 @@
     
     "extension_warning_zip": "The file '{0}' is an archive and Batocera does not support archives for this system. Automatic extraction will occur after download, continue?",
     "extension_warning_unsupported": "The file extension for '{0}' is not supported by Batocera according to the es_systems.cfg configuration. Do you want to continue?",
+    "extension_warning_enable_unknown_hint": "\nTo hide this message: enable \"Hide unknown extension warning\" in Pause Menu > Display",
     
     "confirm_exit": "Exit application?",
     "confirm_clear_history": "Clear history?",
@@ -95,6 +96,10 @@
     "menu_show_unsupported_off": "Show unsupported systems: No",
     "menu_show_unsupported_enabled": "Unsupported systems visibility enabled",
     "menu_show_unsupported_disabled": "Unsupported systems visibility disabled",
+    "menu_allow_unknown_ext_on": "Hide unknown extension warning: Yes",
+    "menu_allow_unknown_ext_off": "Hide unknown extension warning: No",
+    "menu_allow_unknown_ext_enabled": "Hide unknown extension warning enabled",
+    "menu_allow_unknown_ext_disabled": "Hide unknown extension warning disabled",
     "menu_quit": "Quit",
     
     "button_yes": "Yes",
diff --git a/ports/RGSX/languages/es.json b/ports/RGSX/languages/es.json
index 0d02865..8eea8da 100644
--- a/ports/RGSX/languages/es.json
+++ b/ports/RGSX/languages/es.json
@@ -59,6 +59,7 @@
     
     "extension_warning_zip": "El archivo '{0}' es un archivo comprimido y Batocera no soporta archivos comprimidos para este sistema. La extracción automática del archivo se realizará después de la descarga, ¿continuar?",
     "extension_warning_unsupported": "La extensión del archivo '{0}' no está soportada por Batocera según la configuración es_systems.cfg. ¿Deseas continuar?",
+    "extension_warning_enable_unknown_hint": "\nPara no mostrar este mensaje: activa \"Ocultar aviso de extensión desconocida\" en Menú de pausa > Pantalla",
     
     "confirm_exit": "¿Salir de la aplicación?",
     "confirm_clear_history": "¿Vaciar el historial?",
@@ -96,6 +97,10 @@
     "menu_show_unsupported_off": "Mostrar sistemas no soportados: No",
     "menu_show_unsupported_enabled": "Visibilidad de sistemas no soportados activada",
     "menu_show_unsupported_disabled": "Visibilidad de sistemas no soportados desactivada",
+    "menu_allow_unknown_ext_on": "Ocultar aviso de extensión desconocida: Sí",
+    "menu_allow_unknown_ext_off": "Ocultar aviso de extensión desconocida: No",
+    "menu_allow_unknown_ext_enabled": "Aviso de extensión desconocida oculto (activado)",
+    "menu_allow_unknown_ext_disabled": "Aviso de extensión desconocida visible (desactivado)",
     "menu_quit": "Salir",
     
     "button_yes": "Sí",
diff --git a/ports/RGSX/languages/fr.json b/ports/RGSX/languages/fr.json
index 0bffcfe..895d0fb 100644
--- a/ports/RGSX/languages/fr.json
+++ b/ports/RGSX/languages/fr.json
@@ -55,6 +55,7 @@
     
     "extension_warning_zip": "Le fichier '{0}' est une archive et Batocera ne prend pas en charge les archives pour ce système. L'extraction automatique du fichier aura lieu après le téléchargement, continuer ?",
     "extension_warning_unsupported": "L'extension du fichier '{0}' n'est pas supportée par Batocera d'après la configuration es_systems.cfg. Voulez-vous continuer ?",
+    "extension_warning_enable_unknown_hint": "\nPour ne plus afficher ce messager : Activer l'option \"Masquer avertissement\" dans le Menu Pause>Display",
     
     "confirm_exit": "Quitter l'application ?",
     "confirm_clear_history": "Vider l'historique ?",
@@ -93,6 +94,10 @@
     "menu_show_unsupported_off": "Afficher systèmes non supportés : Non",
     "menu_show_unsupported_enabled": "Affichage systèmes non supportés activé",
     "menu_show_unsupported_disabled": "Affichage systèmes non supportés désactivé",
+    "menu_allow_unknown_ext_on": "Masquer avertissement extension inconnue : Oui",
+    "menu_allow_unknown_ext_off": "Masquer avertissement extension inconnue : Non",
+    "menu_allow_unknown_ext_enabled": "Masquer avertissement extension inconnue activé",
+    "menu_allow_unknown_ext_disabled": "Masquer avertissement extension inconnue désactivé",
     
     "button_yes": "Oui",
     "button_no": "Non",
diff --git a/ports/RGSX/languages/it.json b/ports/RGSX/languages/it.json
new file mode 100644
index 0000000..e5111e9
--- /dev/null
+++ b/ports/RGSX/languages/it.json
@@ -0,0 +1,220 @@
+{
+  "controls_mapping_title": "Configurazione dei controlli",
+  "controls_mapping_instruction": "Tieni premuto per 3s per configurare:",
+  "controls_mapping_waiting": "In attesa di un tasto o pulsante...",
+  "controls_mapping_press": "Premi un tasto o un pulsante",
+  "welcome_message": "Benvenuto in RGSX",
+  "disclaimer_line1": "È pericoloso andare da soli, prendi tutto ciò che ti serve!",
+  "disclaimer_line2": "Ma scarica solo giochi",
+  "disclaimer_line3": "che possiedi già!",
+  "disclaimer_line4": "RGSX non è responsabile dei contenuti scaricati,",
+  "disclaimer_line5": "e non ospita ROM.",
+
+  "loading_test_connection": "Verifica connessione...",
+  "loading_download_data": "Download cartella Dati iniziale...",
+  "loading_progress": "Progresso: {0}%",
+  "loading_check_updates": "Verifica aggiornamenti... Attendere...",
+  "error_check_updates_failed": "Impossibile verificare gli aggiornamenti.",
+  "loading_downloading_games_images": "Download giochi e immagini...",
+  "loading_extracting_data": "Estrazione cartella Dati iniziale...",
+  "loading_load_systems": "Caricamento sistemi...",
+  "error_extract_data_failed": "Errore nel download o nell'estrazione della cartella Dati iniziale.",
+  "error_sources_load_failed": "Errore nel caricamento delle sorgenti. Apri il menu e seleziona Aggiorna cache giochi",
+
+  "error_no_internet": "Nessuna connessione Internet. Controlla la rete.",
+  "error_controls_mapping": "Impossibile mappare i controlli",
+  "error_api_key": "Inserisci la tua API key (solo premium) nel file {0}",
+  "error_api_key_extended": "Inserisci la tua API key (solo premium) nel file /userdata/saves/ports/rgsx/1fichierAPI.txt aprendolo in un editor e incollando la chiave",
+  "error_invalid_download_data": "Dati di download non validi",
+  "error_delete_sources": "Errore nell'eliminazione del file systems_list.json o delle cartelle",
+  "error_extension": "Estensione non supportata o errore di download",
+  "error_no_download": "Nessun download in sospeso.",
+
+  "platform_no_platform": "Nessuna piattaforma",
+  "platform_page": "Pagina {0}/{1}",
+
+  "game_no_games": "Nessun gioco disponibile",
+  "game_count": "{0} ({1} giochi)",
+  "game_filter": "Filtro attivo: {0}",
+  "game_search": "Filtro: {0}",
+  "game_header_name": "Nome",
+  "game_header_size": "Dimensione",
+
+  "history_title": "Download ({0})",
+  "history_empty": "Nessun download nella cronologia",
+  "history_column_system": "Sistema",
+  "history_column_game": "Nome del gioco",
+  "history_column_size": "Dimensione",
+  "history_column_status": "Stato",
+  "history_status_downloading": "Download: {0}%",
+  "history_status_extracting": "Estrazione: {0}%",
+  "history_status_completed": "Completato",
+  "history_status_error": "Errore: {0}",
+  "history_status_canceled": "Annullato",
+
+  "download_status": "{0}: {1}",
+  "download_progress": "{0}% {1} MB / {2} MB",
+  "download_canceled": "Download annullato dall'utente.",
+
+  "extension_warning_zip": "Il file '{0}' è un archivio e Batocera non supporta archivi per questo sistema. L'estrazione automatica avverrà dopo il download, continuare?",
+  "extension_warning_unsupported": "L'estensione del file '{0}' non è supportata da Batocera secondo la configurazione di es_systems.cfg. Vuoi continuare?",
+  "extension_warning_enable_unknown_hint": "\nPer non visualizzare questo messaggio: abilita \"Nascondi avviso estensione sconosciuta\" in Menu Pausa > Schermo",
+
+  "confirm_exit": "Uscire dall'applicazione?",
+  "confirm_clear_history": "Cancellare la cronologia?",
+  "confirm_redownload_cache": "Aggiornare l'elenco dei giochi?",
+
+  "popup_redownload_success": "Cache pulita, riavvia l'applicazione",
+  "popup_no_cache": "Nessuna cache trovata.\nRiavvia l'applicazione per caricare i giochi.",
+  "popup_countdown": "Questo messaggio si chiuderà tra {0} secondo{1}",
+
+  "language_select_title": "Selezione lingua",
+  "language_select_instruction": "Usa le frecce per navigare e Invio per selezionare",
+  "language_changed": "Lingua cambiata in {0}",
+
+  "menu_controls": "Controlli",
+  "menu_remap_controls": "Rimappa controlli",
+  "menu_history": "Cronologia",
+  "menu_language": "Lingua",
+  "menu_accessibility": "Accessibilità",
+  "menu_display": "Schermo",
+  "display_layout": "Layout schermo",
+  "menu_redownload_cache": "Aggiorna elenco giochi",
+  "menu_music_toggle": "Attiva/Disattiva musica",
+  "menu_music_enabled": "Musica attivata: {0}",
+  "menu_music_disabled": "Musica disattivata",
+  "menu_restart": "Riavvia",
+  "menu_filter_platforms": "Filtra sistemi",
+  "filter_platforms_title": "Visibilità sistemi",
+  "filter_all": "Mostra tutto",
+  "filter_none": "Nascondi tutto",
+  "filter_apply": "Applica",
+  "filter_back": "Indietro",
+  "filter_platforms_info": "Visibili: {0} | Nascosti: {1} / Totale: {2}",
+  "filter_unsaved_warning": "Modifiche non salvate",
+  "menu_show_unsupported_on": "Mostra sistemi non supportati: Sì",
+  "menu_show_unsupported_off": "Mostra sistemi non supportati: No",
+  "menu_show_unsupported_enabled": "Visibilità sistemi non supportati abilitata",
+  "menu_show_unsupported_disabled": "Visibilità sistemi non supportati disabilitata",
+  "menu_allow_unknown_ext_on": "Nascondi avviso estensione sconosciuta: Sì",
+  "menu_allow_unknown_ext_off": "Nascondi avviso estensione sconosciuta: No",
+  "menu_allow_unknown_ext_enabled": "Nascondi avviso estensione sconosciuta abilitato",
+  "menu_allow_unknown_ext_disabled": "Nascondi avviso estensione sconosciuta disabilitato",
+  "menu_quit": "Esci",
+
+  "button_yes": "Sì",
+  "button_no": "No",
+  "button_OK": "OK",
+  "popup_restarting": "Riavvio...",
+
+  "controls_hold_message": "Tieni premuto per 3s per: '{0}'",
+  "controls_skip_message": "Premi Esc per ignorare (solo PC)",
+  "controls_waiting": "In attesa...",
+  "controls_hold": "Tieni premuto 3s",
+
+  "controls_action_confirm": "Conferma",
+  "controls_action_cancel": "Annulla",
+  "controls_action_up": "Su",
+  "controls_action_down": "Giù",
+  "controls_action_left": "Sinistra",
+  "controls_action_right": "Destra",
+  "controls_action_page_up": "Pagina precedente",
+  "controls_action_page_down": "Pagina successiva",
+  "controls_action_clear_history": "Selezione multipla / Cancella cronologia",
+  "controls_action_history": "Cronologia",
+  "controls_action_filter": "Filtro",
+  "controls_action_delete": "Elimina",
+  "controls_action_space": "Spazio",
+  "controls_action_start": "Aiuto / Impostazioni",
+
+  "controls_desc_confirm": "Conferma (es. A, Invio)",
+  "controls_desc_cancel": "Annulla/Indietro (es. B, Backspace)",
+  "controls_desc_up": "Naviga in alto",
+  "controls_desc_down": "Naviga in basso",
+  "controls_desc_left": "Naviga a sinistra",
+  "controls_desc_right": "Naviga a destra",
+  "controls_desc_page_up": "Pagina precedente/Scorrimento veloce su (es. PagSu, LB)",
+  "controls_desc_page_down": "Pagina successiva/Scorrimento veloce giù (es. PagGiù, RB)",
+  "controls_desc_clear_history": "Selezione multipla (lista giochi) / Cancella cronologia (menu cronologia) (es. X)",
+  "controls_desc_history": "Apri cronologia (es. H, Y)",
+  "controls_desc_filter": "Apri filtro (es. F, Select)",
+  "controls_desc_delete": "Elimina carattere (es. LT, Canc)",
+  "controls_desc_space": "Aggiungi spazio (es. RT, Spazio)",
+  "controls_desc_start": "Apri menu pausa (es. Start, AltGr)",
+
+  "action_retry": "Riprova",
+  "action_quit": "Esci",
+  "action_select": "Seleziona",
+  "action_history": "Cronologia",
+  "action_download": "Scarica",
+  "action_filter": "Filtro",
+  "action_cancel": "Annulla",
+  "action_back": "Indietro",
+  "action_navigate": "Naviga",
+  "action_page": "Pagina",
+  "action_cancel_download": "Annulla download",
+  "action_background": "Sfondo",
+  "action_confirm": "Conferma",
+  "action_redownload": "Scarica di nuovo",
+  "action_clear_history": "Cancella cronologia",
+
+  "network_checking_updates": "Verifica aggiornamenti...",
+  "network_update_available": "Aggiornamento disponibile: {0}",
+  "network_extracting_update": "Estrazione aggiornamento...",
+  "network_update_completed": "Aggiornamento completato",
+  "network_update_success": "Aggiornamento a {0} completato con successo. Riavvia l'applicazione.",
+  "network_update_success_message": "Aggiornamento completato con successo",
+  "network_no_update_available": "Nessun aggiornamento disponibile",
+  "network_update_error": "Errore durante l'aggiornamento: {0}",
+  "network_check_update_error": "Errore durante il controllo degli aggiornamenti: {0}",
+  "network_extraction_failed": "Impossibile estrarre l'aggiornamento: {0}",
+  "network_extraction_partial": "Estrazione riuscita, ma alcuni file sono stati ignorati a causa di errori: {0}",
+  "network_extraction_success": "Estrazione riuscita",
+  "network_download_extract_ok": "Download ed estrazione riusciti di {0}",
+  "network_zip_extraction_error": "Errore durante l'estrazione dello ZIP {0}: {1}",
+  "network_permission_error": "Nessun permesso di scrittura in {0}",
+  "network_file_not_found": "Il file {0} non esiste",
+  "network_cannot_get_filename": "Impossibile ottenere il nome del file",
+  "network_cannot_get_download_url": "Impossibile ottenere l'URL di download",
+  "network_download_failed": "Download fallito dopo {0} tentativi",
+  "network_api_error": "Errore richiesta API, la chiave potrebbe essere errata: {0}",
+  "network_download_error": "Errore download {0}: {1}",
+  "network_download_ok": "Download OK: {0}",
+
+  "utils_extracted": "Estratto: {0}",
+  "utils_corrupt_zip": "Archivio ZIP corrotto: {0}",
+  "utils_permission_denied": "Permesso negato durante l'estrazione: {0}",
+  "utils_extraction_failed": "Estrazione fallita: {0}",
+  "utils_unrar_unavailable": "Comando unrar non disponibile",
+  "utils_rar_list_failed": "Impossibile elencare i file RAR: {0}",
+  "utils_xdvdfs_unavailable": "Strumento xdvdfs non disponibile (mancante o permesso negato)",
+  "download_initializing": "Inizializzazione...",
+  "accessibility_font_size": "Dimensione carattere: {0}",
+  "confirm_cancel_download": "Annullare il download corrente?",
+  "controls_help_title": "Guida ai controlli",
+  "controls_category_navigation": "Navigazione",
+  "controls_category_main_actions": "Azioni principali",
+  "controls_category_downloads": "Download",
+  "controls_category_search": "Ricerca",
+  "controls_navigation": "Navigazione",
+  "controls_pages": "Pagine",
+  "controls_confirm_select": "Conferma/Seleziona",
+  "controls_cancel_back": "Annulla/Indietro",
+  "controls_history": "Cronologia",
+  "controls_clear_history": "Selezione multipla / Cronologia",
+  "controls_filter_search": "Filtro/Ricerca",
+
+  "menu_symlink_option": "Opzione Symlink",
+  "symlink_option_enabled": "Opzione symlink abilitata",
+  "symlink_option_disabled": "Opzione symlink disabilitata",
+  "symlink_settings_saved_successfully": "Impostazioni symlink salvate con successo",
+  "symlink_settings_save_error": "Errore nel salvataggio delle impostazioni symlink",
+
+  "menu_games_source_prefix": "Sorgente giochi",
+  "games_source_rgsx": "RGSX",
+  "sources_mode_rgsx_select_info": "RGSX: aggiorna l'elenco dei giochi",
+  "games_source_custom": "Personalizzato",
+  "sources_mode_custom_select_info": "Modalità personalizzata: imposta l'URL in {0} poi aggiorna l'elenco giochi",
+  "sources_mode_custom_missing_url": "Nessun URL personalizzato impostato (modifica {0})",
+  "sources_mode_custom_download_error": "Download sorgente personalizzata fallito"
+}
diff --git a/ports/RGSX/languages/pt.json b/ports/RGSX/languages/pt.json
index db45a0f..e6170bb 100644
--- a/ports/RGSX/languages/pt.json
+++ b/ports/RGSX/languages/pt.json
@@ -58,6 +58,7 @@
     
     "extension_warning_zip": "O arquivo '{0}' é um arquivo compactado e o Batocera não suporta arquivos compactados para este sistema. A extração automática ocorrerá após o download, continuar?",
     "extension_warning_unsupported": "A extensão do arquivo '{0}' não é suportada pelo Batocera segundo a configuração es_systems.cfg. Deseja continuar?",
+    "extension_warning_enable_unknown_hint": "\nPara não ver esta mensagem: ative \"Ocultar aviso de extensão desconhecida\" em Menu de Pausa > Exibição",
     
     "confirm_exit": "Sair da aplicação?",
     "confirm_clear_history": "Limpar histórico?",
@@ -95,6 +96,10 @@
     "menu_show_unsupported_off": "Mostrar sistemas não suportados: Não",
     "menu_show_unsupported_enabled": "Visibilidade de sistemas não suportados ativada",
     "menu_show_unsupported_disabled": "Visibilidade de sistemas não suportados desativada",
+    "menu_allow_unknown_ext_on": "Ocultar aviso de extensão desconhecida: Sim",
+    "menu_allow_unknown_ext_off": "Ocultar aviso de extensão desconhecida: Não",
+    "menu_allow_unknown_ext_enabled": "Aviso de extensão desconhecida oculto (ativado)",
+    "menu_allow_unknown_ext_disabled": "Aviso de extensão desconhecida visível (desativado)",
     "menu_quit": "Sair",
     
     "button_yes": "Sim",
diff --git a/ports/RGSX/rgsx_settings.py b/ports/RGSX/rgsx_settings.py
index 0ef5480..c02ce44 100644
--- a/ports/RGSX/rgsx_settings.py
+++ b/ports/RGSX/rgsx_settings.py
@@ -50,7 +50,7 @@ def load_rgsx_settings():
     from config import RGSX_SETTINGS_PATH
     
     default_settings = {
-        "language": "fr",
+        "language": "en",
         "music_enabled": True,
         "accessibility": {
             "font_scale": 1.0
@@ -66,7 +66,8 @@ def load_rgsx_settings():
             "mode": "rgsx",       
             "custom_url": ""      
     },
-    "show_unsupported_platforms": False
+    "show_unsupported_platforms": False,
+    "allow_unknown_extensions": False
     }
     
     try:
@@ -211,6 +212,22 @@ def set_show_unsupported_platforms(enabled: bool):
     save_rgsx_settings(settings)
     return settings["show_unsupported_platforms"]
 
+# ----------------------- Unknown extensions toggle ----------------------- #
+
+def get_allow_unknown_extensions(settings=None) -> bool:
+    """Retourne True si le téléchargement des extensions inconnues est autorisé."""
+    if settings is None:
+        settings = load_rgsx_settings()
+    return bool(settings.get("allow_unknown_extensions", False))
+
+
+def set_allow_unknown_extensions(enabled: bool) -> bool:
+    """Active/désactive le téléchargement des extensions inconnues et sauvegarde."""
+    settings = load_rgsx_settings()
+    settings["allow_unknown_extensions"] = bool(enabled)
+    save_rgsx_settings(settings)
+    return settings["allow_unknown_extensions"]
+
 # ----------------------- Display layout (grid) ----------------------- #
 
 def get_display_grid(settings=None):
diff --git a/ports/RGSX/utils.py b/ports/RGSX/utils.py
index 7592b14..9299811 100644
--- a/ports/RGSX/utils.py
+++ b/ports/RGSX/utils.py
@@ -247,9 +247,11 @@ def check_extension_before_download(url, platform, game_name):
     try:
         sanitized_name = sanitize_filename(game_name)
         extensions_data = load_extensions_json()
+        # Si le cache des extensions est vide/introuvable, ne bloquez pas: traitez comme "inconnu"
+        # afin d'afficher l'avertissement d'extension au lieu d'une erreur fatale.
         if not extensions_data:
-            logger.error(f"Fichier {config.JSON_EXTENSIONS} vide ou introuvable")
-            return None
+            logger.warning(f"Fichier {config.JSON_EXTENSIONS} vide ou introuvable; poursuite avec extensions inconnues")
+            extensions_data = []
 
         is_supported = is_extension_supported(sanitized_name, platform, extensions_data)
         extension = os.path.splitext(sanitized_name)[1].lower()
@@ -271,10 +273,23 @@ def check_extension_before_download(url, platform, game_name):
         if is_supported:
             logger.debug(f"L'extension de {sanitized_name} est supportée pour {platform}")
             return (url, platform, game_name, False)
-        elif is_archive and system_known:
-            logger.debug(f"Archive {extension.upper()} détectée pour {sanitized_name}, extraction automatique prévue")
+        elif is_archive:
+            # Même si le système n'est pas connu ou que l'extension n'est pas listée,
+            # on force l'extraction des archives (ZIP/RAR) à la fin du téléchargement
+            # puis suppression du fichier.
+            logger.debug(f"Archive {extension.upper()} détectée pour {sanitized_name}, extraction automatique prévue (extension non listée)")
             return (url, platform, game_name, True)
         else:
+            # Autoriser si l'utilisateur a choisi d'autoriser les extensions inconnues
+            allow_unknown = False
+            try:
+                from rgsx_settings import get_allow_unknown_extensions
+                allow_unknown = get_allow_unknown_extensions()
+            except Exception:
+                allow_unknown = False
+            if allow_unknown:
+                logger.debug(f"Extension non supportée ({extension}) mais autorisée par l'utilisateur pour {sanitized_name}")
+                return (url, platform, game_name, False)
             logger.debug(f"Extension non supportée ({extension}) pour {sanitized_name}, avertissement affiché")
             return (url, platform, game_name, False)
     except Exception as e: