"Convert the .avi file into DVD format first using DeVeDe, available in the repo
When using DeVeDe, make sure you pick the DVD option as otherwise it defaults to .iso"
that is what i do, remember to test the menus, i don't remember how to create a dvd without menu in devede
do you need to convert a movie to dvd or just store it on a dvd?
if you need to store the movie just burn it to the dvd as the file it is so you can copy it again as a file
if you want to use it on a dvd player and the file is .mpeg, .avi or xvid(could be avi too) it is possible that you can watch it without converting it to a dvd structure
i have found some avi files with weird errors, sometimes open it with avidemux and save it again without any change fixes the errors it could have