The KEYDB.cfg file is a plain-text database containing , Processing Keys , and Media Keys for thousands of Blu-ray titles. It is part of the AACS (Advanced Access Content System) decryption ecosystem.
Changes made at runtime are not automatically written to the config file. When you restart the server, it reverts to the old configuration unless you explicitly update keydb.conf . You can use CONFIG REWRITE to merge runtime changes back into the file, preserving comments and non‑default settings.
To make MakeMKV recognize your keys, you must place the KEYDB.cfg file in a specific directory. Windows Setup keydbcfg makemkv
However, if you try to rip newer discs or certain UHD titles, you might run into errors stating the volume key is unknown. This is where comes in.
Double-check that it is in the aacs folder within the roaming (Windows) or .config (Linux) directory. The KEYDB
Make sure you are using a "hashed" KeyDB if you are using an official UHD drive, or a standard one if you have a "LibreDrive" flashed firmware. 🚀 Automate Your Workflow Tired of manual downloads? Many users use or specialized scripts to automatically sync the latest
where updated KEYDB.cfg files are posted. When you restart the server, it reverts to
If you downloaded a raw text file, you might need to clean it.
def rip_disc(disc_info): # Example MakeMKV command mkv_command = f"makemkv disc_info['source'] disc_info['output']" subprocess.run(mkv_command, shell=True)
Navigate to the MakeMKV configuration directory: cd ~/.MakeMKV (or create it with mkdir -p ~/.MakeMKV ) Create an aacs folder: mkdir -p ~/.config/aacs Move the KEYDB.cfg file into ~/.config/aacs . the file to KEYDB.cfg (all caps). Linux Setup Navigate to your home directory and reveal hidden files. Go to ~/.config/aacs (create the directory if needed). Place KEYDB.cfg there and ensure it is named correctly. 2. Best Practices and Tools for Keeping Keys Updated