I have had the Oppo for less than a year. Then they sent me an updated remote (much better!)which was much needed. I stuck a Dianne Krall dvd-audio in there last night, and the sound was great. I usually listen to cds with my denon 1650 cd player. I don't have the Oppo set up for 6 channel, but I'm going to try it. The audio on h/t is excellent, and although I'm sure the build quality is much less than the 5910,3910, or 2910, so is the price! And the upscale picture is terrific. I use the DVI direct to my Samsung HD 50". $200 bucks!!