crash "encoding argument must be a valid constant" on some files in eyeD3 version 0.8.2

[core-code]

hey. i just tried out eyeD3 ... works great but it seems to crash on some files... i get this backtrace:

$ eyeD3 -2 t.mp3
Uncaught exception: encoding argument must be a valid constant.

eyed3:ERROR: encoding argument must be a valid constant.
Traceback (most recent call last):
File "/Library/Python/2.7/site-packages/eyed3/main.py", line 279, in _main
retval = mainFunc(args, config)
File "/Library/Python/2.7/site-packages/eyed3/main.py", line 50, in main
fs_encoding=args.fs_encoding)
File "/Library/Python/2.7/site-packages/eyed3/utils/init.py", line 91, in walk
handler.handleFile(os.path.abspath(path))
File "/Library/Python/2.7/site-packages/eyed3/plugins/classic.py", line 457, in handleFile
super(ClassicPlugin, self).handleFile(f, tag_version=parse_version)
File "/Library/Python/2.7/site-packages/eyed3/plugins/init.py", line 172, in handleFile
self.audio_file = core.load(f, *args, **kwargs)
File "/Library/Python/2.7/site-packages/eyed3/core.py", line 78, in load
return mp3.Mp3AudioFile(path, tag_version)
File "/Library/Python/2.7/site-packages/eyed3/mp3/init.py", line 172, in init
core.AudioFile.init(self, path)
File "/Library/Python/2.7/site-packages/eyed3/core.py", line 256, in init
self._read()
File "/Library/Python/2.7/site-packages/eyed3/mp3/init.py", line 178, in _read
tag_found = self._tag.parse(file_obj, self._tag_version)
File "/Library/Python/2.7/site-packages/eyed3/id3/tag.py", line 101, in parse
tag_found, padding = self._loadV2Tag(fileobj)
File "/Library/Python/2.7/site-packages/eyed3/id3/tag.py", line 133, in _loadV2Tag
self.extended_header)
File "/Library/Python/2.7/site-packages/eyed3/id3/frames.py", line 1418, in parse
frame = createFrame(tag_header, frame_header, data)
File "/Library/Python/2.7/site-packages/eyed3/id3/frames.py", line 1518, in createFrame
frame.parse(data, frame_header)
File "/Library/Python/2.7/site-packages/eyed3/id3/frames.py", line 273, in parse
self.encoding = self.data[0:1]
File "/Library/Python/2.7/site-packages/eyed3/id3/frames.py", line 246, in encoding
raise ValueError("encoding argument must be a valid constant.")
ValueError: encoding argument must be a valid constant.

i can send you the 'offending' file by mail if you want to have a look