I just picked up the DVD-A on the cheap second-hand. Apologies if this has been covered already, but what went wrong with this disc? In comparison to the stereo layer, the 5.1 mix sounds like it was sourced from a generational tape dub. The rhythm section sounds flat and devoid of any excitement, I had to bring up my center speaker 8-10 dB just to get the bass guitar back in the mix at proper level. I also noticed there's quite a bit more tape hiss in the stereo versus the 5.1 remix, maybe overuse of noise reduction on the digitized multitrack is the culprit?