Point FindVUK to your optical drive letter. Enable the “Monitor MakeMKV” option. Tell it where to save the output KEYDB.cfg (usually %APPDATA%\aacs\keydb.cfg on Windows or ~/.config/aacs/ on Linux).

The solution? A proper, structured backup pipeline.

— FindVUK has a checkbox: “Monitor MakeMKV while waiting for drive access”. Tick it.

That’s like having a master key but never making a copy for your security team. FindVUK is an open-source Windows tool (runs fine under Wine on Linux/macOS) that does one brilliant thing: it extracts AACS Volume Unique Keys from both MakeMKV and PowerDVD and aggregates them into a clean, shareable KEYDB.cfg.

Open the KEYDB.cfg in a text editor. You should see an entry like: