I am surprised things such as Cinavia[1] isn't more widely used for tracking. It is designed to cut off the audio after 20 minutes which you see on a PS3 with m

I am surprised things such as Cinavia[1] isn't more widely used for tracking. It is designed to cut off the audio after 20 minutes which you see on a PS3 with many Bluray Disc rips released on torrents. For that to work obviously you need the player to implement the feature but this isn't about disabling playback but simply tracking a leak. Just tweak it audio on each early release copy and you are good to go. The really interesting thing about Cinavia is that it survives even an audio transcode/re-encode so even converting 5.1 DTS to MP3 or similar won't kill it. It is extremely robust in that sense. [1] http://en.wikipedia.org/wiki/Cinavia http://en.wikipedia.org/wiki/Cinavia