Viewers can turn captions on or off for a captioned QuickTime movie via the menu items in QuickTime. You can make this functionality a bit more apparent to viewers by adding a CC button to your movie. This button is called a "Sprite" in QuickTime, and this tutorial shows you how to add one. You can download a free QuickTime Sprite from Whit Anderson.
Launch Add a Sprite in QT (QuickTime, 12.50MB)
Transcript of Movie:
Please see our How-To Tutorials page for a complete listing of all tutorials.