abstract:The Universal Media Disc (UMD) is an optical disc medium developed by Sony for use on their PlayStation Portable handheld gaming and multimedia platform. It can hold up to 1.
So if you pop in a DVD "infected" with Protect DVD-Video, it can't be read by Windows Media Player, Media Center Edition, or any DirectShow-based software, thanks to a UniversalDisc Format that tricks your machine into believing that the IFO file is zero bytes long.