document updated 18 years ago, on Oct 30, 2006

In Vista, DRM'd music and other audio will have the ability to say "play only on analog, never over digital outputs". [1] (there are quite a few soundcards these days that have digital inputs, making it somewhat trivial to copy DRM'd audio if one wants to)
In some cases, content providers have already decided to do this. [2]
Though, as guessed, there is a way for driver developers to disable the