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Fatal error when rip starts, have latest keydb and codec installed
Posted: Mon Nov 16, 2020 4:20 pm
by AdamGW
I am encountering a fatal error in MakeMKV. It happens after just a few seconds as the rip process starts.
I tried opening the disc in VLC which gives me the error "No valid processing key found in AACS config file.". With this information, I have confirmed that I have libaacs installed on my system and I downloaded the latest version of keydb.cfg (2020-11-16) to make sure that was up-to-date. Despite this, I am still unable to open the disc.
Am I out of luck until the key is added to a future version of keydb.cfg?
Re: Fatal error when rip starts, have latest keydb and codec installed
Posted: Mon Nov 16, 2020 10:07 pm
by Woodstock
Versions of MakeMKV after 1.4.1 or so download a new key database for UHD disks as needed. Regular Blurays do not need it.
MakeMKV does not use libaacs, although it can emulate it for other programs, like VLC.
Re: Fatal error when rip starts, have latest keydb and codec installed
Posted: Tue Nov 17, 2020 2:07 am
by AdamGW
Okay, perhaps I'm confusing it with something else then. When MakeMKV first scans the disc and before I open the titles, I see "Protection: AACS v2" listed under Source.
Some new information: I am able to rip the smaller titles on the disc. The ones that have 1 segment. The main title on the disc (25 segments) is the one that fatal errors. This is happening on multiple discs from the same manufacturer/studio.
The MakeMKV log isn't much help. Everything looks okay and the fatal error hits a few moments after "005014:0000 Saving 1 titles into directory..." is logged. No other info is logged.
Re: Fatal error when rip starts, have latest keydb and codec installed
Posted: Tue Nov 17, 2020 2:42 am
by Woodstock
AACS v2 is very old, and should not be an issue. The fact that it says it's saving a title means it is able to decrypt the data.
Sudden stoppage would be a read error, most likely.
For logging, are you set for debug logging, or standard logging? Does it respond differently if you chose "Backup", rather than Open->MakeMKV?
Re: Fatal error when rip starts, have latest keydb and codec installed
Posted: Tue Nov 17, 2020 3:29 pm
by AdamGW
I discovered my problem and it deserves a huge facepalm on my part. I was ripping a title that I
thought was the main program because I saw "25 Chapters" listed. However, I only just now noticed that title's size is 35
MB rather than GB and is only 2 minutes long. This title is obviously some kind of mechanism to support the "Play All" option on the disk. I was trying to rip it thinking it was a full program.
Sorry for the trouble, but thanks for the help anyways!
