http://www.pythonlabs.com/tech/python2.0/doc/pdf-a4-2.0b1.tar.bz2 gave me an error when bunzipppng:
bunzip: Data integrity error when decompressing.
Input file = pdf-a4-2.0b1.tar.bz2, output file = pdf-a4-2.0b1.tar
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Piet van Oostrum <piet at cs.uu.nl>
URL: http://www.cs.uu.nl/~piet [PGP]
Private email: P.van.Oostrum at hccnet.nl