Apple iMovie User Manual download pdf (Page 39)

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Luanne Eris Fose, Ph.D.

To export to QuickTime format:

1. Choose File > Share > QuickTime.

2. Choose whichever option you prefer (Email, Web, Web Streaming, CD ROM, Full

Quality DV or Expert Settings) from the Format pop-up menu and click the Share

button.

3. Type a name for your movie file and select a destination where it will be saved.

4. Click the Save button.

To export with QuickTime Expert Settings:

You can experiment with your own QuickTime compressing settings to get video output that is

best suited for your own individual needs by using the Expert Settings during the QuickTime

export.

1. Choose File > Share > QuickTime

2. Choose Expert Settings… from the Formats pop-up menu and click Share.

3. Choose the type of export format you want and click Options.

• MPEG-4 is the current standard compression/decompression format used for

movies that are to be viewed on the web. This option is only available if you

have QuickTime 6 or later installed on your computer.

• Motion JPEG codec is best for movies that will be viewed on older Windows

computers.

• Sorenson Video codecs reduce the file size but retains a relative high quality

movie.

4. In general, choose settings that give you the best trade-off between file size and

video playback quality.

• Pick your desired movie frame size first. Frame size is the primary

determinant of movie file size.

• Set the number of key frames. A lower 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 more than 12 frames per second.

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Apple iMovie User Manual Page 39