Podcasting is the publishing of media files through an RSS/XML feed. While the term podcast seems to infer a direct relationship with Apple's popular iPod music player, it is a relatively independent technology. In fact, there are many free podcast aggregators which can download John Jay Institute podcasts to be played on any MP3 player or computer.
For a list of podcast aggregators click here:
http://www.podcastingnews.com/topics/Podcast_Software.html
John Jay Institute's podCast feed is available here:
http://www.johnjayinstitute.org/file/jji_podcast.xml