I was looking to rip my DVD to a digital format like AVI or MPEG to watch on any number of portable devices. There are tons of paid software out there to do this but I am a fan of free license and open source software (FLOSS). I came across DVDx an open source DVD backup software that copies DVD movies to VCD, SVCD, DivX, AVI or WMV in a single step.
The installation was straight forward and it installs a link to the DVDx guide that has all the explanation needed to backup your DVDs. This has quickly become one of my must have open source software list.