I would try to be as simple as possible Here is a lot better answer. UHD Blurays and Bluray are the same media as a physical media. There is no differences between UHD Bluray Disks and Normal Bluray Disks. A Bluray Disk (UHD BD or Normal Bluray) can store up to 100 GB of Data. (4 Layers Disk), in a physical structure point of vue. each layers uses 25 GB. there is no fucking difference, between UHD and HD on the physical media. So yes every Bluray drive burner could technically burn or read an UHD Bluray, even if it has not the UHD specifications. But manufacturers are patching firmware to create a damned marketing fucking virtual difference. the only truth is that there is no difference at all. So wtf you will say. The only true difference between an UHD BD and the Normal BD is only the way the data is encoded and encrypted. UHD BD uses x265 codec (a far more efficient codec than x264 in term of compression) and more Layers on a BD disk (3 to 4 layers) and of course has a better resolution 3 840 × 2 160 and better colors Normal BD uses x264 codec, less layers (usually 1 to 2) lower resolution 1920x1080 and normal colors UHD BD are encrypted using AACS V2 (with a lot of multiple keys) Normal BD are encrypted using AACS V1 (with a few keys) PS : Even a PS4 could technically read an UHD Bluray Disk, if sony was not lazy to patch their drives, a put a better GPU power to decode X265. The big drawback of UHD, is that it uses a lot more CPU to decode in real time.