Quote Originally Posted by drseid
The uncompressed PCM in the case of BRD is not quite CD quality, but does approach it. The DTS MA Lossless will be CD quality or better whenever it is released (I believe a title or two was recently announced for BRD). I believe it has the capability to go to 24 bit audio.
This is incorrect. The uncompressed PCM tracks on blueray are 16bit and sampled at 48khz Redbood CD is 16/44.1khz. Since the DVD came to market all soundtracks are sampled at 48khz. So bluray's tracks at their minimum meet CD stardards easily, and have the capability to greatly exceed it.

In the case of HD DVD, you can also output the DD+ from the HDMI out. I have only used it through the analog outs, and it sounds quite good... That said, the Toshiba now has the full 5.1 DD TrueHD Lossless cpabilities through firmware 2.0. I have only watched one disc with DD TrueHD 5.1 (Training Day), but the differences are quite large compared to regular DD (and even DD+). DD TrueHD is CD quality, BTW.
DDTrueHD is encoded from uncompressed PCM tracks, the same uncompressed tracks that make up a bluray soundtrack. A codec cannot exceed the source in resolution.