This requires advanced technical steps and a drive that can report the required host certificates.
Other sources include:
KEYDB.cfg is a plain‑text configuration file that stores known for AACS‑protected Blu‑ray and UHD discs. makemkv keydb cfg
The keydb.cfg file is an essential, community-updated database file required by MakeMKV to decrypt AACS 2.0 and 2.1 protection on 4K UHD Blu-rays. To use it, the file must be placed in the user's specific MakeMKV data directory, which is typically found within the application's preferences, followed by enabling Expert Mode and restarting the application. This requires advanced technical steps and a drive
If a key is found, decryption proceeds. If not, MakeMKV cannot read the disc. decryption proceeds. If not