This isn’t really the usecase, you’d be better off just playing it with VLC from a BD/DVD drive with the menu plugins. Netflix won’t have DVD menus either. Ripping is necessary for this to make your physical copies accessible via Jellyfin. May want to check ARM (Automatic Ripping Machine) to streamline the process. Legally, this is perfectly fine in most jurisdictions, because you are creating a backup of your purchased property.