www.makemkv.com

I'd like to be able to resume an incomplete rip, especially if I need to switch drives for a disc.
Can't you re-check the files using the hashes and only re-rip the files that don't match?

This would be awesome, I have had discs go slow 2x ripping speed, all that was needed was to clean this disc and off it goes at a good rip speed. Resuming would be perfect instead of starting from the beginning.

The program's author, Mike, has talked about a feature like that in the past.

https://forum.makemkv.com/forum/viewtopic.php?p=119692#p119692

I don't know when (if ever) such a feature will ship.