Dear All This is my first posting and I'd appreciate any help or advice you can give. I have a Sanyo Home Theatre System (DC-AVD8501) which is OK and has played all my DVDs perfectly well. However, when I try to listen to any of the four commentary tracks on TTT EE DVD I get absolutely nothing - not a hiss - even if the volume is turned up to maximum. However, I ran some tests and the commentary tracks and the associated subtitles letting you know who is speaking do work if I play the DVD through my Playstation 2 and the DVD drive on my PC. Having said that, my PS2 cannot play the second feature disk at all past halfway through for some unknown reason - it will only play perfectly with full functionality on my PC. I did go back to the store to get an exchange, but the same happened with the replacement. I'm at a loss. Any ideas why this may be happening and if I can force my Sanyo to play the audio track somehow? I have the FotR EE DVD too and had no problems at all with that. Thanks!