However, when it does work fully and iOS 4.2 is out for the iPad, all will be right with the world, and users will, theoretically, be able to live stream all kinds of content to the Apple TV. We synced our own ripped DVDs (in MPEG-4 format), as well as purchased iTunes content, to our iPad using the 4.2 beta, and we were able to stream (the audio for) both to the Apple TV with barely any effort.