www.makemkv.com

I am trying to extract "Dirty Grandpa" and it is one of the LionsGate titles that presents many multiple of 31.5GB movie titles.
I find reference on the board here to selecting "Playlist 573", however there is nothing in the interface that even distinguishes one track from another, much less one designated as "573".

Can anyone share how this designation may be identified?

Some playlists do not show in makemkv but are actually on the disc... Search the folder \BDMV\PLAYLIST\ for the playlist your looking for and load that into something like tsmuxer or mkvmerge etc...