What is Podcasting?
According to wikipedia,
Podcasting is a new term for the online publishing of files in a
way that allows for the subscription-like syndication and distribution
of files as they become available. Most podcasts are audio in MP3
format, syndicated through the RSS protocol. Other formats and other
types of files, such as video, can also be podcasted, though these
are limited by common bandwidth constraints.
On iPodder.org,
Dave Winer gives us the
following definition. Think how a desktop aggregator works. You
subscribe to a set of feeds, and then can easily view the new stuff
from all of the feeds together, or each feed separately. Podcasting
works the same way, with one exception. Instead of reading the new
content on a computer screen, you listen to the new content on an
iPod or iPod-like device.
Think of your iPod as having a set of subscriptions that are checked
regularly for updates. Today there are a limited number of programs
available this way. The format used is RSS 2.0 with enclosures.
In the future, radio shows like All Things Considered and Rush Limbaugh
will be available in this manner, and perhaps other syndication
formats will support enclosures.
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