QUOTE(Kahlamx @ May 13 2025, 02:32 PM)
Mind to elaborate this line?
AV1-SDR has been around for many years on Netflix. I don't think it's Netflix problem.
Dynamic Metadata (be it DV or HDR10+..) is another layer of info/instructions tonemapping embedded on the content on top of MaxCLL and MaxFALL for exisitng HDR10 fallback.
If a colorist can master DV contents for Netflix deliverables which set at 1000 nits (mostly), I don't see why it's tough for them do.
I have apple Tv and Amazon prime which streams HDR10+ just fine on my Sammy OLED. I think it's Samsung side restricting HDR10+ streaming on older devices even AV1 is supported specifically for Netflix. (Yes I access the service menu).
my mistake dv higher profile should fall back to hdr10 only
while it's true dv and hdr10+ is just an enhancement based on hdr10,
if you have such expensive tv wouldn't you want to experience it to the fullest?
this dynamic metadata tell the tv how to more accurately to display the scene to the maximum capability of the tv, example

most cost & time effective way is netflix to automate the dv to hdr10+ conversion, for sure end result won't be the same
example, dv includes multiple "trim passes" that fine-tune tone mapping for different display targets, eg 1000 nits, 600 nits, 200 nits SDR fallback.
hdr10+ doesn’t use multiple trim passes — it provides one tone-mapping path per scene.
to convert dv to hdr10+, you must flatten the dv trims into a single metadata stream compatible with hdr10+
losing nuanced tone mapping decisions made for specific display types
the result can still look very good, but it's not 1:1 — some intent may shift or require regrading
ain't no way netflix is going to do re-grading for their movies even more so scene by scene, netflix is bound by no altering license
even re grading is done it won't be the same, in dv after colour grade is finalised the dynamic metadata is automatically generated
but they would go in and manually adjust the metadata, this cannot be done in hdr10+, which always affect how the same movie in dv and hdr10+ look
so in simple term you can carry over video, timeline, colour values, etc., but not all adjustments or features map 1:1
you will need manual adjustments to preserve the creative intent but hdr10+ is quite limited in that area
however it's different for hdr10+ to dv, you can't get 1:1 result, but very similar result in the end with re-grading
and no it's not samsung side restriction, rather it's netflix once they realised they under estimated the requests load
so you will see on reddit, hdr10+ is on and off time to time