In this how-to video, you will learn how to compress iMovie files into QuickTime files to make them look really good on YouTube. First, open iMovie. Click Share and click Share again. Go to Expert Settings and click on Share. Click on Options and go to Settings. Change it to h264, current frames per second, and every. Restrict should be set at 5000. Optimize it for DVD and change encoding to best quality. Change the size to NTSC 720X486. Check de-interlace video and hit okay. Change the sound to Mono, 44.100, target bit rate to 64 and hit okay. Once this is done, hit okay to exit the windows. The movie is now ready to be compressed into high quality QuickTime files for optimal viewing on sites such as YouTube.