free m4v converter

i have been searching everywhere for a free m4v converter that will allow me to convert a m4v type file to mp4 or avi. i found many programs that will do this claiming to be free but all of them have some kind of trial restriction on the final converted output eg. only convert 50% of the file and basically require me to spend $30 on a license. if anybody knows where i can find a free program id be greatful.

my final aim is to burn the m4v file to a dvd - a burner program that would allow me to burn a m4v to dvd would also work.

thanks in advance John

For converting almost any format to mp4 or m4v, I would recommend Handbrake. For Video DVD burning, DVD flick is a good choice.
Both apps are free and easy to use.

thx for the advice