Originally Posted by petegtsv10
Anyone have the answer?? (with regard to lossless to 7.1 and losing quality for quantity)
I can tell you I have the same receiver as the OP that originally asked the question. I think the Onkyo does a great job of simply sampling some of the information from the surround channels and puts it into the back surround channels. In our case, I personally think it is better for movies, but that is just my opinion and only based on my limited use with the receiver and quite a few discs. With another receiver, YMMV. Long story short....you don't loose any quality from the original 5 channels, you just "create" 2 more..
Also, I would like to add that when you do have this receiver setup to "turn" HD codecs into 7.1 PLIIx, it automatically turns off PLIIX when a SEVEN channel source is detected. This allows us to "set it and forget it" while still allowing all 7.1 discrete tracks to played only in original format, yet "creating" us a 7.1 automatically when a less than 7 channel track is played.