Does anyone know of any free DVD ripping software which converts the files to MPEG or AVI?

I want to rip a few so I can put them on my creative zen vision and watch them in different places.

Search google for dvd decrypter or dvd shrink. Both free tools.

Gordian Knot, or Auto-Gordian Knot

I know WinAVI can convert video files to avi or mpeg,maybe you can try.I usually use it convert any files to dvd or rm.
hope it work for you too. :)