Now that Oppo will not make any more DVD machines, I want one, probably either a BDP-105 or a UDP-205. But I don't care at all about video or multi-channel audio. I only want it for stereo playback of DVD-Audio, SACD, and BluRay Audio discs. The best stereo sound quality is my goal. Since a used 205 is about $1000 more than a used 105, the difference may not be necessary for me to spend, for only the 2-channel (stereo) audio quality. Does anyone here have experience hearing these models in a high-end stereo audio system? How close are they in sound quality, playing DVD-A, SACD, and or BluRay Audio? Also, what about the "Signature" modification? How different is that? Finally, what about after ModWright changes the power supply and analog stage to vacuum tubes? Well, I already have a ModWright SACD player, so maybe I won't spend that much again.