Feeds and <guid> value

Question

Can someone please explain how handle the <guid> value in an Feed xml

I have the following scenario below that sometimes publishes an update for the same event/article therefore my <link> <guid> and guide value are the same
however it generates an validation error "duplicate guid value" when I check it with Feed Validator.
What is the correct way of handling this, I am new to this.

  <item>
   <title>World Budosai 2008 - Sugotere</title>
   <link>http://www.gojuokinawa.com/events.htm#World_Budosai_2008_-_Sugotere</link>
   <guid>http://www.gojuokinawa.com/events.htm#World_Budosai_2008_-_Sugotere</guid>
   <pubDate>Mon, 01 Sep 2008 18:00:00 +1000</pubDate>
   <description> This is an update to ...</description>
  </item>


  <item>
   <title>World Budosai 2008 - Sugotere</title>
   <link>http://www.gojuokinawa.com/events.htm#World_Budosai_2008_-_Sugotere</link>
   <guid>http://www.gojuokinawa.com/events.htm#World_Budosai_2008_-_Sugotere</guid>
   <pubDate>Fri, 22 Aug 2008 18:00:00 +1000</pubDate>
   <description>In occasion of the success of the World Budosai July 2008, a broadcasting team from RBC television ...</description>
  </item>

Answer 1

Its GUID - In the most simple terms its a value or string that would be guaranteed to be unique.  It makes sure that someone consuming, or storing the feed, can always reach the posts by ensuring the GUID is unique to that post.

GUID:
http://en.wikipedia.org/wiki/Globally_Unique_Identifier

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Chris Hanscom - Microsoft MVP
Resource Center | Veign's Blog | Web Development Help

Answer 2

Thanks for the clarification,
it is obvious now once you explained my spelling error.

Can you recommend a good/free GUID value generator

Answer 3

It looks like your feed creator is creating it for you already.

For a dead simple, in a pinch GUID I use:
www.buygold.net/v01n01/v01n01.html

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Chris Hanscom - Microsoft MVP
Resource Center | Veign's Blog | Web Development Help