Apple Final Cut Pro 7 - Manual (Page 1781)

The video compression settings here are similar to the QuickTime movie file compression
settings, although fewer codecs are supported. For more details, see
“Exporting QuickTime
Movies.”
9 Click Settings in the Audio area to adjust the compression settings used for the audio
tracks.
The audio compression settings here are similar to the QuickTime movie sound settings,
although different codecs and settings are supported.
10 When you’re ready to export, click Save.
A dialog shows you the progress of the export. To cancel your export, press Esc or click
Cancel.
1781 Chapter 106 Exporting Using QuickTime Conversion