KEYDB.cfg contains disc keys to decrypt Blu-rays, please google KeyDB.cfg for more details.
The latest Blu-ray may require new keys to decrypt, you need to keep it updated.
The default KEYDB.cfg location is %APPDATA%\aacs\, you can change it in Xreveal's Settings > BD & UHD > KeyDB.
Step 3. Download and install Xreveal Plugins 1.0 to support removing BD+ and CSS protection.
This step is optional for Xreveal Pro. However, installing this plugin supports offline removal of BD+ protection, without need an internet connection. There are a small number of discs that are not yet supported, and we are working on them.
The free version requires you to manually maintain the FUT file to remove BD+ protection. For details, please google cached BD+ tables.
Step 4. Insert your protected disc into your drive. Xreveal will detect it and automatically remove the protection on the fly.