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Old 18th March 2018, 16:05   #27160  |  Link
sneaker_ger
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Join Date: Dec 2002
Posts: 5,565
Problem is HDR. Non-UHD Blu-Ray players need SDR so you need to tonemap. Methods are discussed in other parts of the forum, it's not a trivial topic:
https://forum.doom9.org/showthread.php?p=1827927
https://forum.doom9.org/showthread.php?t=174415
https://github.com/ifb/vapoursynth-tonemap

(That said, not all UHD Blu-Rays have to be HDR.)
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