So I've had my computer which came with a dvd burner for over a year, and just today I bought DVD RWs for the first time. And I have absolutely no frigging clue what to do. I don't even know where to start. I don't want to burn a DVD I have right now, I have an .avi file I want to put on a dvd. Do I have to rip it or what...into what format where the hell's the software? I'm stupid, someone help me please. 