UnicodeDecodeError when parsing http://www.projekt6.de/?feed=podcast

Trying to parse the RSS feed http://www.projekt6.de/?feed=podcast with feedparser yields the following traceback:

thp@macbook:~$ python
Python 2.5.2 (r252:60911, Apr 21 2008, 11:12:42)
[GCC 4.2.3 (Ubuntu 4.2.3-2ubuntu7)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import feedparser
>>> f = feedparser.parse('http://www.projekt6.de/?feed=podcast')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/var/lib/python-support/python2.5/feedparser.py", line 2624, in parse
    feedparser.feed(data)
  File "/var/lib/python-support/python2.5/feedparser.py", line 1441, in feed
    sgmllib.SGMLParser.feed(self, data)
  File "/usr/lib/python2.5/sgmllib.py", line 99, in feed
    self.goahead(0)
  File "/usr/lib/python2.5/sgmllib.py", line 138, in goahead
    k = self.parse_endtag(i)
  File "/usr/lib/python2.5/sgmllib.py", line 315, in parse_endtag
    self.finish_endtag(tag)
  File "/usr/lib/python2.5/sgmllib.py", line 355, in finish_endtag
    self.unknown_endtag(tag)
  File "/var/lib/python-support/python2.5/feedparser.py", line 476, in unknown_endtag
    method()
  File "/var/lib/python-support/python2.5/feedparser.py", line 1318, in _end_content
    value = self.popContent('content')
  File "/var/lib/python-support/python2.5/feedparser.py", line 700, in popContent
    value = self.pop(tag)
  File "/var/lib/python-support/python2.5/feedparser.py", line 641, in pop
    output = _resolveRelativeURIs(output, self.baseuri, self.encoding)
  File "/var/lib/python-support/python2.5/feedparser.py", line 1594, in _resolveRelativeURIs
    p.feed(htmlSource)
  File "/var/lib/python-support/python2.5/feedparser.py", line 1441, in feed
    sgmllib.SGMLParser.feed(self, data)
  File "/usr/lib/python2.5/sgmllib.py", line 99, in feed
    self.goahead(0)
  File "/usr/lib/python2.5/sgmllib.py", line 133, in goahead
    k = self.parse_starttag(i)
  File "/usr/lib/python2.5/sgmllib.py", line 291, in parse_starttag
    self.finish_starttag(tag, attrs)
  File "/usr/lib/python2.5/sgmllib.py", line 333, in finish_starttag
    self.unknown_starttag(tag, attrs)
  File "/var/lib/python-support/python2.5/feedparser.py", line 1589, in unknown_starttag
    _BaseHTMLProcessor.unknown_starttag(self, tag, attrs)
  File "/var/lib/python-support/python2.5/feedparser.py", line 1458, in unknown_starttag
    value = unicode(value, self.encoding)
UnicodeDecodeError: 'utf8' codec can't decode bytes in position 3-8: unsupported Unicode code range

I've created a patch against the most recent feedparser.py in Ubuntu 8.04, which will fix this problem by replacing invalid characters instead of failing completely.