Madhf,
I'm guessing that you have a DVD-Audio player that you're using as a regular DVD player.
DVD-audio players can't access the standard DVD content (the Dolby Digital and DTS mixes) on a DVD-Audio disc.
I'm not sure why it is, but it's a real pain point for users like myself who have a DVD-Audio player but lack 5-channel discrete input on their preamps.
I'm guessing that you have a DVD-Audio player that you're using as a regular DVD player.
DVD-audio players can't access the standard DVD content (the Dolby Digital and DTS mixes) on a DVD-Audio disc.
I'm not sure why it is, but it's a real pain point for users like myself who have a DVD-Audio player but lack 5-channel discrete input on their preamps.