I find that concert DVD's sound much better in PCM two channel, so play around with the setup menus on the discs and see if it helps. Turn your sub down, and make sure you leave a gap between the hi-pass to your mains and the roll-off to the sub to prevent any lumpy doubling in midbass. The best sounding discs in my little collection are Tom Petty's High Grass Dogs, Stop Making Sense, Stones to the Max (IMAX), and The Wall. The sound on these discs is quite good. I've heard Hell Freezes Over in a store, and it was good, too. James Taylor's concert DVD is also good, from the demo I saw. Don't get discouraged!
Why do music DVD's sound so bad?
I have purchased a few music DVD's (videos and live performances not 5 channel). and thought I could watch and listen to music with my 2 channel set-up (really haven't got into the 5 channel thing). I lost interest early after being disappointed with the sound quality. I tried a few DVD players Sony DVP9000ES and had the same poor results? It might be the titles I have selected.