UHD Blu-Ray: Allowed resolutions for HEVC, mandatory audio formats and HDR formats?

[kurkosdr]

I am trying to find information on the above but haven't been successful so far. Most sources are either ambiguous or refer to the original Blu-Ray, so I thought it doesn't hurt to ask here:

- What are the allowed resolution-framerate combos allowed for HEVC? Is 1920x1080 at non-HFR framerates (23.976p, 24p, 25p, 30p) allowed to be in HEVC (or only H.264)?

- Is Dolby Digital Plus (aka E-AC3) with Atmos audio a mandatory format or does it have to be accompanied by a Dolby Digital (aka AC3) stream like on the original Blu-Ray?

- What HDR formats are mandatory, aka don't need an accompanying stream? By "HDR formats" I mean things like HLG, HDR10, HDR10+ etc

- Also, what do I need to write 100GB UHD Blu-Rays? I mean things like writers and blank discs. Can BDXL writers and blank discs be used to produce compatible 100GB UHD Blu-Rays with the right software?

[Emulgator]

A: Table 2-3: HEVC Main10, High Level 5.1 max.100Mbps 1920x1080, 3840x2160 @23.976p,24p,25p,50p,59.94p
MPEG-4 AVC High/Main Level 4.1/4.0 max. 40Mbps 1920x1080 @23.976p,24p

D: BD-R XL 100GB: Best resource seems makemkv forum. It looks as if only one Panny player (UB-900?) was able to play TL BD-R discs, the others seem to lock that out.
https://forum.makemkv.com/forum/search.php?keywords=BD-R+100GB

[pel9]

A: https://docplayer.net/48882577-White-paper-blu-ray-disc-read-only-format-ultra-hd-blu-ray-audio-visual-application-format-specifications-for-bd-rom-version-3.html

https://pel.hu/down/BD-ROM_3.2.png

C: The dynamic range possibiities are: SDR, HDR10, HDR10+, DV and SL-HDR2 (although I haven't seen any BD title with this format or heard any player supported it)

[kurkosdr]

A: https://docplayer.net/48882577-White-paper-blu-ray-disc-read-only-format-ultra-hd-blu-ray-audio-visual-application-format-specifications-for-bd-rom-version-3.html

https://pel.hu/down/BD-ROM_3.2.png

C: The dynamic range possibiities are: SDR, HDR10, HDR10+, DV and SL-HDR2 (although I haven't seen any BD title with this format or heard any player supported it)
Wait, Dolby Vision is a mandatory HDR encoding? Because in Blu-ray you can put anything you want as optional (there is lots of space), it's the mandatory things I care about.

[SeeMoreDigital]

Wait, Dolby Vision is a mandatory HDR encoding? Because in Blu-ray you can put anything you want as optional (there is lots of space), it's the mandatory things I care about.Nope... But as of Feb 2016 regular HDR10 is (for commercially released content)...

[pel9]

Wait, Dolby Vision is a mandatory HDR encoding? Because in Blu-ray you can put anything you want as optional (there is lots of space), it's the mandatory things I care about.

No, it is not mandatory.

[kurkosdr]

No, it is not mandatory.
Which HDR modes are mandatory?

[SeeMoreDigital]

Which HDR modes are mandatory?
It's HDR10 for commercially released 4K UHD discs. As previously mentioned!