My apologies if this is a stupid question, I'm kinda new to the whole home theatre scene. I've read the owners manual a few times, and all the messages in this thread, and the rx-a710 thread. I have a new rx-v671, and I noticed when watching the blu-ray of ironman2 last weekend, which according to the cover is dts-hd MA, (the 671 is connected to sony bd player via hdmi cable) when hitting the info button on the remote, it toggles between, input, DSP program which was "straight" and decoder which said "PCM", I checked the audio setup on the top dvd menu, and it was set for dts 5.1. It sounded great, from all 5 speakers, yet display said PCM. Im a little confused about that? any ideas.