UHD Blu-Rays can go up to 100GB in capacity and can be read at 144Mbits/second. I don't think it limits many movies, but my 4k Lord of the Rings copy has the mo

UHD Blu-Rays can go up to 100GB in capacity and can be read at 144Mbits/second. I don't think it limits many movies, but my 4k Lord of the Rings copy has the movie split into multiple discs.