This was the Data Directory , the secret heart of the program where it stored its temporary dumps and settings. He pasted the KEYDB.cfg into the folder and took a deep breath. The Decryption
Demystifying KEYDB.cfg in MakeMKV: The Complete Guide to Decrypting Blu-ray and 4K UHD Discs keydbcfg makemkv
This is the most common point of failure. You cannot place the KEYDB.cfg file just anywhere. It must go into MakeMKV's dedicated "data directory." This was the Data Directory , the secret