Cinavia protection consists of a multi-level watermark that is embedded in the audio track and, while being theoretically transparent(not-audible) for the listener, it is supposed to resist various transformations of the audio stream like re-compression, analog playback & record, re-sampling, pitch shift, etc. The base levels are analog, but on the top level there’s the watermark payload that contains some restrictions regarding the playback environment.
The protection has two elements (one cannot work without the other):
1. The watermark embedded in audio-video content.
2. Cinavia enabled player, that will refuse to play the content if it does not match the restrictions.
Source: Verance’s watermark-based content protection technology becomes mandatory.http://www.verance.com/AdminSavR/new...php?news_id=66