You can add video, or add audio—a music file, a playlist from your iTunes library, or a sound clip—to a sheet.
Note: Audio and video files must be in a format QuickTime supports. If you can’t add a file, first try using iMovie, QuickTime Player, or Compressor to convert the file to a supported format.
Do any of the following:
Drag a media file from the Finder to anywhere on the sheet, or to an image placeholder.
Click Media
in the toolbar, select Photos, Music, or Movies, then select a file.
Select the audio or video file on the sheet.
In the Audio or Movie pane of the Format inspector, drag the Volume slider to adjust the playback volume.
Click the disclosure triangle next to Edit Audio or Edit Movie, then drag the Trim slider to change the length of the audio or video.
Choose an option from the Repeat pop-up menu:
None: Media plays one time, then stops.
Loop: Media plays continuously on the page until you move to the next page.
Loop Back and Forth: Media plays forward, then plays backward. The media continues to play forwards and backwards until the page changes.