I NEED A FREE PROGRAM THAT CONVERTS MOVIES FROM MPEG TO MPEG-4 FOR imovie HD?

Answer 1

I assume that you are talking about Macs - have you tried QuickTime? or if that won't, then QuickTime Pro should do it.

Or you could try your luck with freeware such as the VLC Player (google 'VLC') which is what I used to use to convert .avi files.