www.makemkv.com

Ah, very cool. Thanks.
I had never needed to install a beta key as upgrading did the trick.
I just followed this thread:
https://www.makemkv.com/forum2/viewtopic.php?f=5&t=1053

I guess come January, the beta ends?

Cheers.

I am having exactly the same issue. I just installed Linux Mint 18 and did all the steps you reported including rebuilding and updating but it reports with "This application version is too old" dialog. I had a fully functioning MakeMKV (don't recall which version - probably 1.10.1) with Li...