cbAudio Podcast
If you use Apple iTunes you can subscribe to cbAudio as a podcast.
Choose "Subscribe to Podcast..." from the "Advanced" menu and enter the following URL in the box:
http://camdenbaptist.org.au/audio/feed
Apple have some more information about Podcasts on their site.
There are many other programs that can subscribe to Podcasts and I can't know which one you are using, but the URL above will work for them all.
