Ripping a DVD in Linux

You can simply use mencoder to rip a DVD in linux, and use it as follows:

$ mencoder dvd://1 -ovc lavc -lavcopts \
vcodec=mpeg4:vhq:vbitrate="1200" -vf scale -zoom -xy 640 -oac   \
mp3lame -lameopts br=128 -o dvd.avi