What is a good program for ripping a DVD?

[JustAsking]

I have recently bought a series of DVD's but they are poorly done. no scene-select with-in the episodes, and one of them is Simply missing.
I would like to get the episodes off the DVD's so I can redo them. I can get the missing episode on youtube.

 

[simplyred1]

This is what I use:
http://www.formatoz.com/