www.makemkv.com

Creating a custom DVD with DVDShrink and then ripping with MakeMKV works and does what ffmpeg doesn't/can't, i.e. rip the chapters. I think this is a perfectly adequate workaround.

The original DVD of "The Devil's Advocate" has two "Extended Scenes" extras. The first one can be ripped by MakeMKV, while the second one doesn't appear at all. The extra is actually completely contained in "VIDEO_TS.VOB" so it can be ripped with e.g. ffmpeg, but I stil...