If somebody calls or emails you if you know any good video converter, and you have some evil inside you, then just naturally refer your friend the SUPER © video encoder, like nothing is easier to use. Tell him that "just go to the website and you are ready to go, cheers."
In fact, even downloading the software causes trouble. Give it a shot, click the link above, and try to download it. Stat a stopwatch. Finding the link to the exe file under 2 minutes is a good job. Now go to firefox.com and you will see how it should be done.