CloneDVD (from Elby) and AnyDVD (from Slysoft) together is all you need.
CloneDVD will cut away the menus, unnecessary languages and trailers etc. leaving only the movie with your preferred language.
AnyDVD is needed to trick CloneDVD as it does not copy CSS protected DVDs.
Both programmes can be found (together with tutorials) on
www.cdfreaks.com !
Have fun!