QuickTime Expert Export Settings
If one of the preset export options doesn’t work for you, you can experiment with your own QuickTime compression settings to get video output that’s best suited for your needs.
To apply your own compression settings:
1 Choose File > Share.
2 Click QuickTime in the toolbar.
3 Choose Expert Settings from the “Compress movie for” pop-up menu.
4 Click Share.
5 Choose the type of export format you want and click Options.
Here are a few guidelines to keep in mind as you experiment with your own compression settings:
MPEG-4 is the current standard codec (or compression/decompression format) used for movies that will be viewed on the web.
For movies that will be viewed on older Windows computer systems, you may want to use the Motion JPEG codec.
For a high-quality movie, you can export your movie in the Sorenson Video codec.
This format reduces the file size of the movie while retaining relatively high quality.
In general, choose settings that give you the best tradeoff between file size and video playback quality.
Pick your desired movie frame size first. Frame size is the primary determiner of the movie file size.
Set the number of key frames next. A low number (such as every 10 frames) creates a better quality movie with a larger file size.
Set the frame rate last. You may get choppy video playback if you set the frame rate to less than 12 frames per second.
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