Go to the and look for the "UHD hashed keys" section. Users often share updated _keys.tar files.
MakeMKV needs permission to communicate with the outside world. makemkv automatic sdf downloading is disabled or failed
If you’re comfortable, open Terminal/Command Prompt and try: Go to the and look for the "UHD hashed keys" section
If you need to rip a disc right away, manually downloading the SDF from the forum is the fastest workaround. makemkv automatic sdf downloading is disabled or failed