This is where the KEYDB.cfg file comes in. It’s a community-maintained database of Volume Unique Keys (VUKs) that can get your discs ripping weeks before the official software catches up. What is KEYDB.cfg?
: Many users who rip with MakeMKV also use VLC for playback. VLC requires KEYDB.cfg to play encrypted Blu-rays directly. Where to Find and Install KEYDB.cfg keydbcfg makemkv