This concert DVD will only play in DD 2.0 mode. I know it's not the disc because it played fine on my old Panny and my Xbox. I even tried it in my kids PS2 w/o any problems! I've had no problem playing other concert DVD's in DD 5.1 or DTS such as Enigma, Roy Orbison, Josh Groban etc...... I have the DVD/Optical source selected on my H/K 525 but it doesn't seem to matter. Anyone else run into this problem? Any suggestions? p.s. I just wanted to add that this is the only problem I've had with this unit so far. Course I’ve only had it about a week but it's performance has been stellar otherwise. The dramatic sound difference it has made on most of my redbook CD's alone is worth the admission price. The DVD-A / SACD performance is just "Icing on the Cake"!