I recently stumbled over the Cinavia content protection on a Bluray disc. I had no idea how much the industry is doing to make the use of Bluray discs so stupid for us consumers.I found a very nice summary on AnandTech dissecting the technology and the possible schemes behind it.http://www.anandtech.com/show/5693/cinavia-drm-how-i-learned-to-stop-worrying-and-love-blurays-selfdestruction