: You need an external or internal Blu-ray drive for your PC. For 4K discs, the drive must be "4K-friendly" (flashed with specific firmware). Storage Space : A high-quality MKV rip of a 4K movie can range from 50GB to 90GB 3. Use Ripping Software The industry standard for creating MKV files from discs is Software Version : Ensure you are using MakeMKV v1.18.3