Podcast files are identical to rss files except they add an enclosure
tag.
This is used to provide a link to a multimedia file (the podcast).
<item> <title>Edupod2</title> <description> Hospitality 1 - Pouring the Perfect Guiness </description> <enclosure url="http://cybil.tafeitltn.com.au/~capsticm/labs/rss/podcasts/hospitality/guinness.mp3" length='1600000' type='audio/mpeg' /> </item>
Here are some examples.
Podcasts - my educational podcasts (audio files) xml files
Edupods using rss technologies - a work in progress