www.makemkv.com

I can script other aspects, such as opening the tray when done: diskutil eject /dev/disk4 But manipulating the title selection seems to have little customization other than via the GUI [1] The only other options are potentially binary editing, but if the source code were open, I'd love to contribute...

I couldn't determine if MakeMKV is open-source... if so, I'd be happy to implement that myself and push a merge request.

I did not see via the command line any options to limit the maximum length of a title. Seems counter-intuitive, but in certain cases it makes sense. I have a DVD with older TV episodes on it. Each is roughly 20-35 minutes in length, and there is a distinct title for each. There are additional titles...