Need to rip DVD and edit with Premier CS3 Please Help

Thanks in advance for your help. I created a 45 minute DVD in Premier 6 a few years back and then the computer crashed!. I only have the DVD and now need to rip it so I can edit in Premier CS3.

I have spent countless hours downloading software and trying to get this to work. I have had success getting VOB or IFO files but they dont seem to work when I import to Premier as I get no picture. I tried to convert to MPG but the video result was choppy. I tried to convert to AVI but got no picture.

I am confused with the mulitudes of codecs and conversions.

The bottom line is that I want to rip my DVD and then import to Premier. I am looking for a step by step tutorial that walks me through it.

Thanks again
Ted