Download the following 3 programs (all freeware), ripit4me, dvd decrypter, and dvd shrink. Set up dvd decrypter and dvd shrink, and when you want to backup a movie, run ripit4me, which has a easy to use wizard that will use dvd decrypter and dvd shrink to make nice 4.7 gb iso's that you can burn to dvd-r or dvd+r.