digdug
20-08-2011, 09:25 AM
Cinavia is a new DRM technology that uses "audio watermarking" embedded into the audio stream portion of a movie. What it does is compare the source of the audio to the format in which a movie was released (ie theatrical or commercial disc), and if the watermarked audio source detects a difference, the movie will either be mute (but most likely not play at all).
How Cinavia is applied - an example: If someone were to "CAM" a movie and use a ‘line’ audio source (from a headphone jack, as opposed to recording the ‘crowd’), the watermark in the ‘line’ audio will search for its match - in this case, being a theatrical source. Since a TS or CAM’s ‘line’ audio doesn’t match the original release format, Cinavia will block or restrict playback of the file. (Technical info can be found HERE (To view links or images in this forum your post count must be 1 or greater. You currently have 0 posts. and HERE (To view links or images in this forum your post count must be 1 or greater. You currently have 0 posts. protected by Cinavia technology carry inaudible codes embedded by the copyright owner in their audio tracks that indicate where and how they are allowed to be used. For example, movies that are being released to theaters can carry a Cinavia code that indicates that they are supposed to be duplicated by professional replicators and played back on professional projection equipment only."
How Cinavia is applied - an example: If someone were to "CAM" a movie and use a ‘line’ audio source (from a headphone jack, as opposed to recording the ‘crowd’), the watermark in the ‘line’ audio will search for its match - in this case, being a theatrical source. Since a TS or CAM’s ‘line’ audio doesn’t match the original release format, Cinavia will block or restrict playback of the file. (Technical info can be found HERE (To view links or images in this forum your post count must be 1 or greater. You currently have 0 posts. and HERE (To view links or images in this forum your post count must be 1 or greater. You currently have 0 posts. protected by Cinavia technology carry inaudible codes embedded by the copyright owner in their audio tracks that indicate where and how they are allowed to be used. For example, movies that are being released to theaters can carry a Cinavia code that indicates that they are supposed to be duplicated by professional replicators and played back on professional projection equipment only."