[KLF] OT urgent DVD ripping help!

Could anyone direct me to a good quality and free DVD ripper, which would convert DVDs to mpegs? Also, Windows Movie Maker doesn't seem to like mpegs to edit (it only seems to see their audio). Anyone know of mpeg editting software? Something of the quality and simplicity of CDex would be perfect! :-) I'm hoping to rip and upload some vids to Youtube. Any suggestions gratefully recieved. John