First of all, lossy audio as the main audio codec.
Guess that's a given since there's really no need for it when movie encodes have a 48Mb/s usable transfer rate and 50GB of storage to play with on Blu-ray.
Second, the use of VC-1 as a video codec.
Using the link below (it's to the main page, just click on the Blu-ray Statistics or HD DVD Statistics links at the top of the page, use the Filter function to, uh... filter), check out some interesting statistics. #1, if you use non-exclusive Blu-ray studios for releases in 2007, AVC and MPEG2 combined account for nearly 70% of the total titles. #2, releases in 2007 for exclusive Blu-ray studios shows AVC = 65%, MPEG2 = 27% and VC-1 = 6%. #3, looking at Paramount's total 2007 releases, which include both Blu-ray and HD DVD titles, AVC accounts for over 60% of their titles. But even more interesting is when you look at Paramount's exclusive HD DVD releases after the "lock-down" in 2007 -- AVC accounts for nearly 89% of their releases.
It seems that Microsoft's codec doesn't rate so well on Blu-ray, unless you're Warner Bros or, of course, Universal on HD DVD. However, now that Microsoft wants a promise of download commitments in order for them to provide VC-1 support to a studio, it may not be long before Warner Bros and Universal push away the head that's been bobbin' up'n'down below their waists for the last 20 months.
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Topic - one format: time to trim the fat - Joe Murphy Jr 20:26:05 02/17/08 (0)