MP4? Need Advice Please

Hi, I just downloaded a movie and its MP4. What do I need to add to my WinAvi Converter so I can make this movie into a Dvd? I have ben converting avi’s to dvd formats just find but I can’t even play this movie on Windows Media Player or Real Player. Do I need a certain codec and what would it be? I am wanting to contert it to dvd format to burn on dvd. By the way, the movie is called “Bee Movie” if that matters. Many thanks in advance.

Bee Movie is copyrighted.

So you will need to go and buy it instead of downloading it.