FindVUK is a more comprehensive tool that scans your optical drive, reads disc metadata, and can both fetch existing keys from the public database and calculate new ones. It can also be configured to automatically synchronise the key database on a schedule.
If you are seeing "The volume key is unknown" errors in MakeMKV even after trying to use a KEYDB.cfg file, consider these steps: keydbcfg makemkv
The Ultimate Guide to Using KEYDB.cfg with MakeMKV When ripping newer Blu-rays or 4K UHD discs, you might encounter AACS (Advanced Access Content System) protection that MakeMKV cannot bypass immediately. This often results in a "failed to open disc" error or a request for a specific Volume Unique Key (VUK). FindVUK is a more comprehensive tool that scans
: These are standard Blu-ray drives that happen to read UHD disc structures but do not implement strict AACS 2.0 security protocols. This often results in a "failed to open
To use a custom key database, you must place the file where MakeMKV can "see" it. Locate your Data Directory Open MakeMKV and go to Preferences > General Look for the MakeMKV data directory Move the File %USERPROFILE%\.MakeMKV C:\Users\[YourName]\.MakeMKV : Typically /Users/[YourName]/Library/MakeMKV ~/.MakeMKV ~/.config/aacs : Ensure the file is named exactly (all caps is often recommended for consistency). : Close and reopen MakeMKV to initialize the new keys. 3. Key Tools & Helpers
MakeMKV does not automatically look for an external KEYDB.cfg . You must tell it where to look.
KEYDB.cfg is a text-based database containing and unit keys for thousands of Blu-ray and UHD titles. While MakeMKV normally downloads updates automatically, adding a manual KEYDB.cfg file acts as a backup to ensure your drive can open specific discs immediately. Where to Place KEYDB.cfg