Podcasts are audio files that deliver content over the Internet. A podcast is different from other digital audio formats because of the ability to download audio files automatically using RSS or subscriptions. * To listen to a program on your computer, click on the "Listen" link. * To subscribe to a podcast so that new programs are automatically downloaded to your computer or portable device, right click "Subscribe," choose "Copy Shortcut," and then paste the address into podcatching software such as iTunes.