Turn a collection of video clips into something that resembles a movie production by adding a soundtrack and other audio effects.

You can add music to iMovie from a variety of different sources, depending on the device and type of sound you're adding.

I've told you how to extract audio files from iMovie projects. Here's the way to put them back.

You can add as many folders as you wish to either Audio or Photos; drag-and-drop to your heart’s content. The folders you add will be available to any future iMovie project.

You can add music to a video on your iPhone with the free iMovie app, and select from stock music or your own library. Here's how to do it.

Unfortunately, iMovie 3.0.1 seems to record sound from all four mixed channels by default, resulting in the buzzing.