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A podcast (or non-streamed webcast) is a series of digital media files (either audio or video) that are released episodically and often downloaded through web syndication. The word replaced webcast in common vernacular due to the fame of the iPod and its role in the rising popularity and innovation of web feeds.

The mode of delivery differentiates podcasting from other means of accessing media files over the Internet, such as direct download, or streamed webcasting. A list of all the audio or video files currently associated with a given series is maintained centrally on the distributor's server as a web feed, and the listener or viewer employs special client application software known as a podcatcher that can access this web feed, check it for updates, and download any new files in the series. This process can be automated so that new files are downloaded automatically. Files are stored locally on the user's computer or other device ready for offline use, giving simple and convenient access to episodic content. Commonly used audio file formats are Ogg Vorbis and MP3. In many respects, this is closer to traditional publishing models associated with books and magazines (as opposed to radio, which uses a live stream).

Academics at the Community, Journalism & Communication Research group at the University of Texas at Austin in the USA are proposing a four-part definition of a podcast: A podcast is a digital audio or video file that is episodic; downloadable; program-driven, mainly with a host and/or theme; and convenient, usually via an automated feed with computer software.

A good definition.Interesting podcasts are mostly listened by everyone. Transcription of those podcasts along with audio will give it more exposure. As well as search engines like text with podcasts.

In reply to guest

[QUOTE=rashmi;13908]A good definition.Interesting podcasts are mostly listened by everyone. Transcription of those podcasts along with audio will give it more exposure. As well as search engines like text with podcasts.[/QUOTE]

agree with that...

Podcasts, user-distributed internet broadcast radio shows and talk programs, have blossomed in popularity since their inception. In the beginning, they were only accessible via a small selection of specialized internet portals, but modern podcasts are available through RSS website feeds, news sites, social networking venues and blogs.

source: [url]http://www.ipodder.org/how_to_record_a_podcast[/url]

Hope it helps too...^_^

In reply to rashmi