We already have audio watermarking with Cineva which stops mutes playback on devices such as the PS3. Obviously the media player needs to implement detection of Cineva and then block playback (or audio in the case of Cineva which I believe causes the player the mute the audio). I very much doubt VideoLAN and MPC-HC will implement such things however I can see Windows Media Player and other "official" media players implementing it.
Cineva is interesting as from what I have read it can survive even pretty extreme audio changes so even the audio from a CAM copy with crappy mono sound will still carry the watermark from capture to encoded MP4 (or whatever you capture to). I have not seen any statistics on how successful it actually is at surviving in real world use though.
Cineva is interesting as from what I have read it can survive even pretty extreme audio changes so even the audio from a CAM copy with crappy mono sound will still carry the watermark from capture to encoded MP4 (or whatever you capture to). I have not seen any statistics on how successful it actually is at surviving in real world use though.