Hi, I'm took my timed Keynote presentation and sent it to an uncompressed .mov file. I then added a .aiff soundtrack through Quicktime Pro. I then exported and now have a compressed H.264 .m4v file. It's perfect: the sound and video are great and everything is good. The file size is reasonable. However this will be burned to a CD and sent to an office. I don't know what computers they're running. What container format should I use? I could probably find software to transfer the video to something like .avi or .wmv, but I don't know what is the best way to go. The Mac and PC compatibility of this video should be as standard as is reasonable in today's time. Any help would be great, thanks.