Burn songs to CD
You can easily burn a GarageBand song to an audio CD.
Burn a song to CD
Insert a recordable CD into your computer’s optical drive.
Before burning, be sure your computer supports the recordable CD you’re using. Only computers with disc-burning capability can be used to burn a song to CD.
Choose Share > Burn Song to CD.
You can also burn multiple songs to CD by sending the songs to an iTunes playlist, and then burning the playlist to CD in iTunes. For more information about burning a playlist to CD, see iTunes Help.