Great software. Use it. :)
See http://www.makemkv.com/developers/usage.txt for CLI instructions.
Your API key needs to be set in
app_Key = "app-key-123"
To backup into directory “test”:
makemkvcon backup --decrypt disc:/mnt/bluray/
That will decrypt and dump the entire disc, in original M2TS format.
Backup main titles to MKV
Note that it won't take a symlink to the block device.
makemkvcon mkv dev:/dev/sr0 all .
makemkvcon mkv disc:0 all .