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#4 |
Special Member
Mar 2007
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This is interesting.
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#5 | |
Power Member
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![]() Quote:
Post production on the theatrical cut of most movies can take place right up until the last minute. What you see on opening day in movie theaters was often still a work in progress less than a week before that. Sure, test screenings and press screenings can happen a couple of weeks ahead of opening day, but some parts of the movie may still be left unfinished or the filmmakers will go back and tweak a few things before completing the theatrical cut. Anyway, with the nature of theatrical post production being what it is, there simply isn't any time to carefully author a VC-1 or AVC encode for Blu-ray. The 2K (and sometimes 4K) digital intermediates created for most movies these days are uncompressed or lossless compressed. The data files given to digital cinema equipped movie theaters are encoded in high bit rate Motion JPEG2000 format. Not nearly as much work as to go into encoding a movie in JPEG2000 since the bit rate is still so high. The AVC and VC-1 video streams on Blu-ray require a lot more work to get comparable video quality while fitting into a much smaller space (a 50GB optical disc instead of a 300GB hard disc). |
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