Rails - Feb 2006 - Ruby Feedparser and exceptions on valid feeds

I am using Ruby Feedparser and keep running into situations when a feed is
valid but feedparser throws an exception - REXML::ParseException:
Declarations can only occur in the doctype declaration.

The following feed does validate at feedvalidator.org (with a warning, but
does validate):
http://www.engadget.com/rss.xml

However, when I run feedparser I get this error:

<REXML::ParseException: Declarations can only occur in the doctype
declaration.
Line:
Position:
Last 80 unconsumed characters:
<![CDATA[<p>Filed under: <a
href="http://www.engadget.com/category/gaming/"
rel=">
/usr/lib/ruby/1.8/rexml/parsers/baseparser.rb:325:in `pull''
/usr/lib/ruby/1.8/rexml/parsers/treeparser.rb:21:in `parse''
/usr/lib/ruby/1.8/rexml/document.rb:178:in `build''
/usr/lib/ruby/1.8/rexml/document.rb:45:in `initialize''
/home/eduard/rails/zaptxt/lib/feedparser/feedparser.rb:26:in `parse''
/home/eduard/rails/zaptxt/lib/feedparser/feedparser.rb:18:in
`initialize''

Any ideas what I can do?

Thanks,
eduard
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