I have similar issues.. using windows 10 and just installed vlc 3.0.16 I can't play blurays... tried placing the keydb.cfg in the following folders under c:\Users\********\AppData\
\ (directly in the appdata folder)
\Roaming
\Roaming\vlc
\aacs (according to
https://forum.doom9.org/showthread.php?t=176924 it should be put here..
I think I see your error, you've put it into vlc, which I think is your error.
You need to follow those instructions
exactly
1) Press Windows Key + R to open Run.
2) Type %Appdata% and click OK. This will put you at C:\Users\'user name'\AppData\Roaming
3) Click the New folder icon on top, and name the folder aacs so you have ...\Appdata\Roaming\aacs\
4) Open the newly created aacs folder and paste the KEYDB.cfg file there.
So you have to create a new folder in
Roaming called aacs.
Open your new aacs folder and put KEYDB.cfg into it.
Do Not open this new aacs folder in vlc, just put it directly into Roaming.
Once you have done this, the list of files in Roaming will look something like:-
Yourname > AppData > Roaming
aacs
Adobe
audacity
.
.
.
vlc
.
.
Click on aacs to open it, then put KEYDB.cfg into it. Then close everything down so you only have your desktop open.
I've been struggling to get Blu-Ray discs to play. I got the same error as you while trying to follow the instructions on the page where I downloaded the KEYDB and liibaccs files from.
The instructions there said something like - insert keydb into C:\ProgramData\aacs. I couldn't find 'ProgramData or aacs anywhere, so dropped it into vlc.
The instructions for the liibaccs (spelling?) file were simple enough even for me
Simon