Im very much a newbie too lol.
Are you looking to store avis. vids etc on a dvd or do you wanna convert the video files to dvd format on a dvd to play in your dvd player??
If you just wanna store the files on a dvd..
Stick in your cd with vids,Drag and drop the files from the cd to your desktop.
Then select and right click said file(s)>send to>sonic recordnow then select your dvd rw burner in sonic and click burn,That should do it.