RipIt4Me
create destination directory beforehand
ReJig ifo mode
demux into video audio
Mpeg2Schnitt
load streams, create indeces, cut if required, chapter insertion, save video frame(s), save chapter.txt
DvdAuthor
video, audio streams, chapters.txt
main menu, submenu with chapters
If all you want is to create a snippet, you probably don't need the last one.