Pirate Aaron

Hey guys, I'm new to the whole burning thing and I recently was given a movie on my friends USB which I want to be able to burn onto a DVD and play it for my family on the DVD player. The current copies I have of the movie are WMV, AVI and MPG and was wondering am I able to convert these using a free converter so that I am able to burn them? Currently have *spam?* and don't think it is able to convert to a DVD format. Any help would be good. Thanks alot, Aaron.