Originally Posted by Smarty-pants
Good point about not knowing wether or not you are really geting the THD soundtrack or not. I never thought of that.
I guess one way to find out, is by setting up an A35 or XA2 in the same configuration, play a THD track that is on both formats, then compare.
Look on the 805 display. Guess what you are getting if you're bitstreaming codecs to it and it says "Dolby TrueHD" or "Stereo". Also a good quick check is look at how many speakers light up. This is a dead give away as whether you're getting 2.0 stereo or 5.1 surrounds.
If you're questioning whether it's 5.1 TrueHD or 5.1 DD, then it gets a little bit complicated than the suggestion above. Also, there's something "tricky" the way that HD DVD players internally decode TrueHD. They are only required to decode 2 channels (stereo) Lf/Rf streams for TrueHD codecs. Also looking at some of the product discriptions for the newer BD players, decoding of TrueHD is highlighted as "2 channel" only. Like the below quote from BadBuys on the 1500. Maybe it's a misprint, maybe it's not?
Built-in decoders for next-generation Dolby Digital Plus and DTS-HD high-resolution surround, plus lossless Dolby TrueHD (2-channel)