[kennyt]

It is my understanding that when you send the audio via bitstream, you are sending it only as DD or DTS, using the multichannel PCM allows for uncompressed sound, and yes, I have compared the two. Even in a simple receiver system the difference was huge. More air, clearer sound and better dynamics. Switching back to bitstream made the whole thing sound compressed and dull. There was no need to switch back and forth, one time was all it would take most anyone to appreciate the difference.