GarageBand '11: Send a podcast to iTunes
You can send a project containing a podcast track to iTunes as a podcast. The podcast track must be visible when you export the project. You can export an audio podcast as an AAC or MP3 file, or export an enhanced podcast as an AAC file.
To send a podcast to iTunes:
Choose Track > Show Podcast Track.
Choose Share > “Send Podcast to iTunes.”
Choose a compression format from the Compress Using pop-up menu.
You can choose either MP3 or AAC compression. Enhanced podcasts must be compressed as AAC files.
Choose an audio quality setting from the Audio Settings pop-up menu.
When you choose a setting, a brief explanation of the setting appears below the menu.
If the podcast track is hidden when you send the project to iTunes, the command “Send Song to iTunes” appears in the Share menu. Choosing this command exports only the audio in AIFF format.
You can also export a project containing a podcast track to disk as a podcast by choosing Share > “Export Podcast to Disk.”