I got vobcopy, with patches sent to the fink project, plus my own little bit of magic up and running on 10.2.3.

I don't like vobcopy

dvdbackup otoh, I like.

Both of these were statically linked to libmpdvdkit from the MPlayer sources, and as such (because I was lazy) stores cached keys in ~/.mplayer

If any of the above means anything to you, discuss

dvdbackup: http://dvd-create.sourceforge.net/
vobcopy: http://lpn.rnbhq.org/projects/c/c.shtml

-K