Re: New Line, I want the Extended Cut of Golden Compass on Blu-ray!!!!!!
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Originally Posted by Douglas Monce
However I believe that DD+ is a more efficient codec and there for should, in theory, be a higher quality track at the same bit rate.
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I don´t believe this. And if I recall, this was pretty much confirmed by Dolby in some threads in AVSforum.
If the bitrate is the same, it doesn´t matter whether it´s DD or DD+.
But of course, if you´re a HD DVD fan..


Edit: Older thread here:
http://www.hometheaterforum.com/htf/...-dd-vs-dd.html
Edit2: And one old thread from AVSforum:
640Kbps DD vs DD+ - AVS Forum Archive 2
Quote (from Roger Dressler/Dolby Laboratories Insider):
"The various new tools in DD+ are indeed powerful. But they don't come into play at 448 kbps or higher. They are there to help DD+ maintain good quality at bitrates well below the point where DD would not normally be used, say, 200-256 kbps for 5.1, or 48 kbps for mono. These bitrates are needed for secondary audio, commentary, and broadcast applications.
There is indeed a clearly discernable difference in openness and transparency between DD+ 768 vs DD at 448. DD at 640 is not identical to DD+ 768, but it is extremely close."
And..
"The new encoder tools in DD+, that materially improve coding efficiency at low bitrates, do not operate at high bitrates like 640 kbps."
edit3:
Quote:
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Originally Posted by Douglas Monce
It could go as high as 3.0 Mbit with HD DVD.
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But none never did go that high with DD+. Granted, some DD+-tracks were 1.5Mbps, when DD (at Blu-ray) of the same release was "only" 640Kbps.