When playing a backup of a Blu-Ray Disk movie, you may recieve the following error message:

"Audio outputs temporarily muted. Do not adjust the playback volume. The content being played is protected by Cinaviaâ„¢
and is not authorized for playback on this device. For more information, see Message Code 3."

Short Answer:

Use an Optical Audio (SPDIF or Toslink) cable for audio instead, and disable audio through HDMI.

Do not spend ridiculous amounts of money on a cable! Use the links on this page to buy an affordable optical cable that works just as well as those expensive cables.

Long Answer:

On some Blu-Ray disk movies the audio track includes a watermark inaudable to the human ear, that when played on a Cinavia-enabled device will be checked to make sure that it is coming from an AACS Blu-Ray Disc. As of Q1 2010, all Blu-Ray players must be Cinavia enabled.

Depending on what player is being used, once the message is displayed, the audio track may be muted, or the movie may stop.

As of this writing, Cinavia is only able to detect the audio watermark when HDMI audio output is enabled. When HDMI audio output is disabled Cinavia will not detect the audio watermark. Check your Blu-Ray player's instructions on how to disable HDMI audio output.

Using an Optical Audio cable (otherwise known as TOS Link or SPDIF cable) for the Audio, and HDMI for the Video will provide the same audio quality as a single HDMI cable, and your Blu-Ray player will not detect the Cinavia watermark.

Optical Audio Cable

If your devices do not support Optical Audio, RCA audio cables will work, though you will not be able to enjoy DTS Audio with this option.