Quote:
Originally Posted by Ascended_Saiyan
On "Stomp the Yard", I noticed that the bitrates on the TrueHD track was much higher than the bitrates on the "Letters from Iwo Jima" TrueHD track.
I popped in the Nine Inch Nails concert. The TrueHD track was at a higher bitrate level than a 5.1 LPCM at 4.6Mbps. The TrueHD track on "Jazz Legends" was almost as high as the Nine Inch Nails concert. I should also point out that the last two titles I mentioned sounded everybit as good as any 5.1 LPCM track or even slightly better (it should sound that way at the same or higher bitrate as a 16-bit 5.1 LPCM track).
Therefore, my theory is that the HD DVD TrueHD tracks maybe compressed to the point where they are no longer lossless.
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It depends: the titles you mention are music tracks. Music is much more nuanced and demanding, compare a soundtrack CD to the film version, not even close.
BTW: Watch the bitrate jump on "Iwo Jima" when things get busy, especially when the music kicks in.