Podcasts

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 WHAT'S A PODCAST

A podcast is a digital audio file (usually MP3 or AAC) made available for download on the internet through an RSS 2.0 feed. The web address of the media file is contained in the enclosure tag of an item in the XML file. A podcast's RSS feed is updated each time a new media file is published. An aggregator for podcasts (such as iTunes or iPodder) is used to subscribe to the RSS feed. The software automatically checks for and downloads new audio files. If desired, the file can then be synced to a digital audio player.
(source: www.how-to-podcast-tutorial.com).