Error while uploading 600+MB file to s3.

Problem: ParseError: mismatched tag: line 16, column 2
S3cmd:   1.5.0-alpha1

Traceback (most recent call last):
  File "/usr/local/bin/s3cmd", line 2037, in <module>
    main()
  File "/usr/local/bin/s3cmd", line 1978, in main
    cmd_func(args)
  File "/usr/local/bin/s3cmd", line 321, in cmd_object_put
    response = s3.object_put(full_name, uri_final, extra_headers, extra_label = seq_label)
  File "/usr/local/lib/python2.7/dist-packages/S3/S3.py", line 446, in object_put
    return self.send_file_multipart(file, headers, uri, size)
  File "/usr/local/lib/python2.7/dist-packages/S3/S3.py", line 843, in send_file_multipart
    upload.upload_all_parts()
  File "/usr/local/lib/python2.7/dist-packages/S3/MultiPart.py", line 66, in upload_all_parts
    self.upload_part(seq, offset, current_chunk_size, labels)
  File "/usr/local/lib/python2.7/dist-packages/S3/MultiPart.py", line 104, in upload_part
    response = self.s3.send_file(request, self.file, labels, buffer, offset = offset, chunk_size = chunk_size)
  File "/usr/local/lib/python2.7/dist-packages/S3/S3.py", line 816, in send_file
    warning("Upload failed: %s (%s)" % (resource['uri'], S3Error(response)))
  File "/usr/local/lib/python2.7/dist-packages/S3/Exceptions.py", line 48, in __init__
    tree = getTreeFromXml(response["data"])
  File "/usr/local/lib/python2.7/dist-packages/S3/Utils.py", line 72, in getTreeFromXml
    tree = ET.fromstring(xml)
  File "/usr/lib/python2.7/xml/etree/ElementTree.py", line 1301, in XML
    parser.feed(text)
  File "/usr/lib/python2.7/xml/etree/ElementTree.py", line 1643, in feed
    self._raiseerror(v)
  File "/usr/lib/python2.7/xml/etree/ElementTree.py", line 1507, in _raiseerror
    raise err
ParseError: mismatched tag: line 16, column 2

-
Aaron