[offFlex]HandBrake[/offFlex]

One of the coolest video ripping / conversion tools I've ever used. This thing is freeware, cross platform, and has a GUI and command line interface. I recently purchased a Mac Mini to serve up media to my TV and HandBrake has been awesome for ripping my DVD collection. Do yourself a favor and check it out.

Download :
    http://handbrake.m0k.org/?article=download

Screengrab :