Hey Harmy, thanks for the update. Love your work. Here are my two cents. You’ll definitely be able to do more with the new UHD rips than the new HD rips, because of the wide color gamut and 10-bit color. Even if your final delivery is in SDR, having the HDR version as a source will give you more details to pull from, especially in the shadows. Essentially, you can use it the same way you’d use Log camera footage. It will need to be graded though, otherwise it will look very flat. The other alternative would be to use the UHD source tonemapped to SDR, but in my opinion a tonemapped version would serve as an inferior source because you wouldn’t have that wide color gamut to work with anymore.
You can bring HDR footage into DaVinci Resolve and export it as ProRes (or TIFF/EXR/DPX, although those are overkill IMO), without tonemapping, and then that would serve as your best source for creating an SDR restoration with a custom grade. Resolve doesn’t handle MKV-wrappped files though, so you’d first need to rewrap an HEVC MKV remux to HEVC MP4 with ffmpeg (I recommend the GUI called Hybrid). I’d be happy to walk you through how to do any of this if you’d like. (Or I could do it myself and send the files to you, if someone can provide the BD UHD remuxes).
Just feel free to DM me if you want me to walk you through anything! Working with HDR footage is pretty simple once you wrap your head around it. 😃
Could you, please, make a tutorial on how to grade and export(in SDR) HDR Blu-rays or general video/media files in Resolve? Or at least point the way?