4 Replies Latest reply: May 7, 2010 4:41 PM by AppleMan1958
A.Y. Level 1 Level 1 (55 points)
Maybe this info will be helpful to someone! Your milage may vary, depending on your setup!

I have to export several 2-hour-long, edited Full-HD videos to QuickTime movies so that other Mac users can import these videos into their iMovie Events.

To find the best export option, 4 tests were done on a 24" Aluminum iMac with 600+GB free space, OSX 10.5.8 clean installed a week ago: 10-second QuickTime 1920 X 1080 video exported with iMovie 09:

(1) Apple Intermediate Codec default = 37 second processing time, 93.7MB final file size. This option delivers the smoothest playback and the sharpest image quality.

(2) H264 default with 1 modification: 1920 X 1080 size = 132 second processing time, 29.2MB file size, video is noticeably softer and too jerky to watch.

(3) H264 default with 2 modifications: 1920 X 1080 size, single pass = 84 second processing time, 33.8MB file size, video is noticeably softer and too jerky to watch.

(4) H264 default with 3 modifications: 1920 X 1080 size, single pass, best quality = 91 second processing time, 71.4MB file size, video is closer to AIC export, but not as smooth.

Needless to say I ended up exporting with the Apple Intermediate Codec default setting. H264 Full-HD export took far too long and the results were not good.

Caution: some QT-Export setting combinations will prevent iMovie 09 from importing its own video so do some tests first. I found this out the hard way =)

24" iMac (OS X Leopard/XP) and 20" Cinema Display, Since 84 Mac 128K and IBM PC