"This is simply the movie industry's latest attempt to sugar
coat DRM (Digital Rights Management). You already bought the movie.
You should be able to watch it on any device you own that can show
the movie and back it up. Of course, that's the last thing the
movie companies want you to do. As far as they're concerned, you
don't buy a movie, an episode of a TV show, an album, or song. You
rent the use of it on one, or at most, two, devices.
"Here's how Digital Copy works. Twentieth Century Fox and Apple
introduced Digital Copy for iTunes earlier this year. It uses
Apple's FairPlay DRM to lock down the video on the Digital Copy.
Since then, Disney and Lions Gate also have started to use it. The
Digital Copy can be transferred to a Windows PC or Macintosh and
viewed with Windows Media Player or iTunes. You can also transfer
the movie to an iPod, Apple TV or a compatible Windows Media-based