Podcasting involves capturing & editing audio and then formatting it for automated online delivery, usually via iTunes. Podcasts are built using an RSS feed, and iTunes uses the RSS code to grab the most recent podcast and downloads it to an iPod. Actually, the RSS just points to an audio mp3 file, which can reside on any server.

In its simplest form, the RSS for a podcasts looks like this:

<?xml version=”1.0″ encoding=”windows-1252″?>
<rss version=”2.0″>
<channel>
<title>DenverPostLyricsUndercover podcast</title>
<description>Archived Lyrics Undercover Podcasts from DenverPost.com</description>
<link>http://denverpost.com/podcasts</link>
<lastBuildDate>Fri 17 Nov 2006 15:03:04 -0700</lastBuildDate>
<pubDate>Fri 17 Nov 2006 15:02:52 -0700</pubDate>
<generator>FeedForAll v1.0 (1.0.2.0)</generator>

<item>
<title>Lyrics Undercover July 31 - </title>
<description>Coverville host Brian Ibbott looks behind the lyrics of “Ode to Billie Joe” by Bobbie Gentry.</description>
<link>http://www.soundography.com/audio/LU-011.mp3</link>
<enclosure url=”http://www.soundography.com/audio/LU-011.mp3″ length=”3644″ type=”mp3″></enclosure>
<pubDate>Mon 31 Jul 2006 14:00:50 -0700</pubDate>
</item>

</channel>
</rss>