i am trying to backup dvds to avi or mpeg can any one tell me what i need please
try here http://www.tmpg-inc.com/
Go to www.doom9.org for a lot of very good information on DVD recording. He has some really good guides with pictures and all.
FairUse Wizard (http://www.fairusewizard.com) will convert a DVD movie to XviD or DivX in a few steps if thats what you mean....
That one's fairly popular. Gordian Knot is another. There are a bunch of them in the Tools section at www.videohelp.com.
AutoGK is another popular package for those new to DVD to AVI encodes and is free. The best method in my opinion is do each step yourself with the individual programs (VirtualDub, AviSynth, etc.) and filters.