i would suggest trying audials moviebox, but it's not a freeware. it depends how many dvds you want to rip, if you're doing this regularly, i guess you could think about investing into a good soft..otherwise probably not. but yeah, this would be my recommendation, because you get some extra features besides the dvd ripping part, you get to record videos and convert them to multiple file formats (avi, wmv, 3gp, mp4, even audio: mp3) and remove protection from drm protected files for example. anyway, you can take a look
here and see what is does and how it functions exactly.