the reason why the public won't buy into DRM - its has to be EVERYWHERE to be effective, and allow the consumer to move seamlessly from device to device. From the TVs in my house, recorded to my Tivo, DVDs I want to play in the house in multiple rooms, take into the player in the minivan, play on a portable device, music in the house, the car, etc. There is no single signed hardware solution that is going to cover all these possibilities - people don't want to carry around some kind of "DRM key" that they have to plug into their various devices to authenticate them so they can play their purchased media.