I use airvideo to convert all my video files. If you happen to have an ipod touch, iphone or ipad, you might want to use that app for mp4/m4v conversions. While you need one of those apple devices to request the conversion, the actual converted files will remain on the host computer. I have found this method to be so much more straightforward than handbrake.
Last edited by Tess89; 11-29-2010 at 10:31 PM.