I don't own any HD disks so... HDCP(High-Definitiion Copy Protection) thats what it stands for.... If you want to View it you need to have it... If you want to Crack it... be my guest.
But you don't get just some form of DRM, Vista locks you out of your own OS. You lose any control, all control being by the wishes of the copyright cartel. Vista would probably even delete an HD version of AnyDVD from your system.