Even 4K77 will run out of disc space on a 100 GB disc. It will be much bigger in 4K
Most 4k movies are around 50-70gb it might be different for 4k77 but I hope it’s around 50
Is burning a ‘homebrew’ 4K BD (h265, I think) something that is possible to do now? Can you make menus? Can you use all blu-ray sizes (25, 50, 100 GB) so long as your video fits?
It’s interesting that the pressed format of 66 GB does not seem to be a size that you can buy in writeable format. What is it, 2 and a half layers…?
I don’t know all about burning large Blu-ray disks I hope smarter people than me can figure it out but I will do what I can for now to help