I thought I would stick this up as I have been recently asked about it.
There are many apps that can rip DVD's and you probably all have you favourites but I like to use DVD Shrink as it can do much more than just rip DVD's.
First get the app from here:
http://www.facialforum.net/showthread.php?t=25266
Now here comes the technical part
Don't be put off as I have tried to make a really very simple operation totally foolproof and as this tutorial is really for a total beginner I probably have over done all the screens and descriptions for you experienced guys so please bear with me, it looks complicated but really its a piece of piss!!