RESET_9999 wrote: ↑Wed May 04, 2022 4:26 pm
it says that on the original M2TS file on the bluray disc?
The m2ts doesn't have the Dolby Vision descriptor, so MakeMKV probably gets the info from probing the HEVC RPUs.
The Koch Media release doesn't seem right to me. The levels and L1 metadata are pretty different.
It's true that the A24 FEL doesn't make much difference, though.
Also, A24 has 3 trim passes (100, 600, 1000) while Koch Media only has one for 100 nits, and it's almost useless (max 2050 adjustment, where 2048 is no adjustment).
So I don't know what they're on about but the two aren't going to be the same at all in Dolby Vision playback.
Some funny thing is that the HDR10 is encoded with this:
Maximum Content Light Level : 420 cd/m2
Maximum Frame-Average Light Level : 69 cd/m2
Seems like a mess of an authoring job here, or a joke. The L1 is consistently over 600 nits, with a 1477 nits peak.
Koch Media also has L5 set to zero, when there are letterbox bars.