You need to look at DVDFab,
http://www.dvdfab.com/
and possibly Video9,
http://www.pspvideo9.com/
Video9 is free, you will need something like DVDshrink to isolate the main files you need from the dvd before video9 reencodes. DVDfab has a good trial period (30 days free) then you need to pay for it over the web, but is the business - is cheap enough, and will do the lot.
Have search around on here
http://www.videohelp.com/
See:
http://www.videohelp.com/guides/how-...ls-id1074#1074