A podcast is a group of audio or video files that is published on the Internet. The files, called episodes, can be downloaded to a computer for playback automatically by using RSS. Many news sites, corporations, and individuals publish podcasts by using RSS. You can subscribe to a podcast by using your computer. When the latest episodes are added to the podcast, you can download them to your computer and transfer them to your Walkman using Media Go. For a Mac computer, you can use Content Transfer to transfer them. You can also transfer them by drag-and-drop from Windows Explorer or the Mac Finder.