I have tried several different programs, free and purchased looking for something that would in one step convert my DVD collection to a good quality Zune format.The program I found is DVDFab Platinum
DVD Copy Software from DVDFab | Copy DVD to PSP, DVDR or iPod. I can put a DVD in my drive and click on DVD to Zune, and it will rip the DVD and convert it so that it can be played on my Zune. It will also rip to other formats like iPod, PSP, NDS, Xbox 360, & more. They have a 30 day trial that is unrestricted. But after ripping 3 DVDs I was convinced that it was well worth the $50 purchase.
I am no way affiliated with the company just a very satisfied customer and thought I would like to share my experience with other new Zune users.