Hi!
You need some programs to convert!
1. some rip tool which can take all the files from your dvd
2. Flask MPEG to make a video file
3. TMPG Enc to make a DIVx (Version 4.12)
4. Some time (it can take some hours!)
There are many Guides in the internet which give you a few! Try searching google with "dvdrip"
CU
Racinghorst