@hellhammer debatably, blu-ray and especially uhd blu-ray shouldn't be here. they have DRM. if you have an older blu-ray player that doesn't have updated firmware then you won't be able to play new movies. even if you have a blu-ray drive on your computer, you have to pay to keep

uhd blu-ray is especially egregious because there is literally no way to watch them from the disc on a computer. you have to buy very specific drives, downgrade their firmware, and then jump through a bunch of other hoops so that you can rip the data from them. THEN you can watch it. they are a pain in the ass unless you have one of the newer consoles or a dedicated player.