Podcast RSS
Feeds
A Podcast RSS feed is what allows
the entire system to
function. To begin at the beginning, a
podcast is a
regular distribution of audio or visual files,
called
episodes, to a users podcast client. The people who
use
a podcast are called subscribers, and the podcast
client
is what allows them to subscribe to a feed. The
podcast
client is a program that connects to the internet,
looking
for a specific file the user has subscribed to, or told
it to
look for. That file is an RSS feed, a machine
readable
piece of coding that sends information back to
the
podcast client. RSS feeds can be used to distribute
many
kinds of information, and were originally used for
blogging and
distributing blog posts to subscribers. As
time went on,
however, a few people had the idea of
enclosing information
about media files within the RSS
feed so that software could be
written to find that
information and download the files
described.
The Podcast RSS feeds became a hit,
and podcast
clients were quickly written to allow people to use
the
new encoding. Podcasting became a means of quickly
and
cheaply sharing episodes with subscribers. Rather
than
requiring subscribers to visit the site that hosted
the files
everytime they wanted to know if a new
episode was released,
users could rely on the podcast
client to do the work for them,
keeping track of
numerous podcast rss feeds that interested
them and
downloading the files to be viewed when they
wished.
Podcast RSS feeds are now used to
distribute a number
of different types of podcasts. Some
producers use it as
way to share a comedy or news program that
they
produce, others podcast in order to share music
files
they create, and some podcast to share video files
they
have created and to showcase their work.
Podcasting
allows the producers to become radio or television
stars
without the large investment in time and money
that
wuld be required to do that. Because podcasting
has
such a low entry cost, requiring little more than a
server
and a domain to host the site and a way to record
the
media, thousands of people who otherwise would not
have
a chance to work in a media environment have a
chance to do so
through their podcast rss feeds.
In this way, podcast RSS feeds allow
media publishing
over the internet at a fraction of the cost of
other forms
of media distribution, permitting people with
much
smaller budgets to compete in some way.
However,
podcast rss feeds are also attracting more
established
companies and groups as well, bringing people
from
NPR radio stations and news organizations like CNN
who
use podcasting as yet another means to distribute
their product
to end users.