www.makemkv.com

Open MKVToolNix , drag 'n drop the file into the "Input" tab. On the "Output" tab select "Split mode: Before chapters" from the drop-down box and type in the chapter numbers on the next line (the number of the chapter you want and the next one, separated by a comma). [...

It is rather difficult to do with MakeMKV itself. You'd have to manually open the disk and find which file(s) contain the segments you want, and rip just those. Not all disks have everything as single files. Or, you can have MakeMKV rip the whole track, and other utilities (like handbrake) extract ...

I have been all set up ripping my 4K UHD media for a few months now, but it occurred to me that it would be very convenient to just rip specific chapters from some of my collection as demo reels. Example: Rip the beach landing chapter in Saving Private Ryan, the Race scene in Ready Player One, etc. ...