^ what he said. Mkv transcode will not lose quality..Personally, I do the disc route, and play via htpc / 360 @ home. Once we go with bd, I plan on keeping original stuff, an mkv, an a bd for ps3 / blu ray player @ gf's place :) ...she has seen most of 2.0, but I'm waiting for 2.1 on bd so we can watch all 3 (the other two are obviously avchd) :) ..I don't mind keeping different formats, as this is some worthy material ;)