i have been making a video with windows moviemaker FOR HOURS and when i finish creating it, the format it's saved in is not acceptable to where i want to download it, they say only MPEG2, MPEG4, Quicktime, AVI, 3G, or h.264 are taken and I don't know how to convert my video or what program to use to make one of the listed formats, PLEASE HELP ME!!!!!!!!!