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A comment on The Blu-Ray Reauthoring Project. Parent comment

Re:The Blu-Ray Reauthoring Project by jacksproit on Friday October 26, 2018 @07:18PM (#18313389)
I don’t understand how a 4K Blu-ray movie with 4x the pixel data can fit on a disc that’s only 2x a 1080 Blu-ray. They must compromise the bitrate? HDR must add overhead also?
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Re:The Blu-Ray Reauthoring Project by jordanthoms on Friday October 26, 2018 @07:31PM (#18313433)
The codec moved from h.264 to h.265, which is a big boost in efficiency, plus the extra pixels don't require as much information to describe as the original ones. 128mbit seems pretty good given that
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Re:The Blu-Ray Reauthoring Project by swsieber on Friday October 26, 2018 @11:22PM (#18314189)
Wow. Mind blown. I never thought of the extra pixel density as carrying less marginal data.
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