Holy shit, it’s been a while since I last checked in this 3.1 UHD version looks amazing. It’ll just burn to a regular 50gb BD-R right, haven’t bothered looking into burning UHD.
50GB BD-R will work, but you’ll probably want to scale back the audio tracks, or you’ll risk going over the total bitrate limit for 4K Blu-ray players. I did just one lossless track and several lossy, and that was fine. You could probably be less conservative.
Also, good to see you again!