Dvd rip to dvd?

i have recently downloaded some dvd rip movies and would like to copy them to dvd. can someone give me detailed instructions on how i should go about copying these. i have nero 7 ultra if this helps. most of these movies are in avi. and xvid. form.

If this material is [B]not[/B] copyrighted, then please use SEARCH. Every 2nd post is about this conversion here. :wink: