4Easysoft DVD Copier

copy dvd to dvd in 1:1 ratio without loss of quality or compress dvd-9 to dvd-5.
4Videosoft DVD Copy

copy dvd-9 to dvd-9, copy dvd-5 to dvd-5, and compress dvd-9 to dvd-5 perfectly.
DVDFab_dvd_copy

dvdfab dvd copy is the most popular dvd copy software (with a 30-day free trial)
BlazeVideo DVD Copy

blazevideo dvd copy is a dvd copy utility with easy usage and fast copy speed.