On the 622, there is a menu item to enable/disable an external recording device. The menu item is active. It is different than the menu items for PocketDish, as they are located under their own sub-menu. Does this connect to the USB? Does anyone know, or have tried this to see if it actually is enabled? I'm going to activate the 622 tomorrow, and I have an external 250gb USB drive. It's the drive I use for my computer backups, so I don't want to chance losing any of its data.