Bad magic number?

[Volucris]

The following error happens when importing mp3scan.py:

Python 2.0 (#8, Oct 16 2000, 17:27:58) [MSC 32 bit
(Intel)] on win32
Type "copyright", "credits" or "license" for more
information.
IDLE 0.6 -- press F1 for help
>>> import mp3scan
Traceback (innermost last):
  File "<pyshell#0>", line 1, in ?
    import mp3scan
ImportError: Bad magic number in
C:\Python20\mp3scan.pyc
>>>

------mp3scan.py-------
res = raw_input('Press ENTER to begin.')
if res != 'q':
    print '\n\nScanning...\n\n'
    import os
    def test(of, dir, files):
        for file in files:
            if file[-3:] == 'mp3':
                of.write(os.path.join(dir, file) + '\n')
    f = open('c:\\mp3scan_results.txt', 'w')
    os.path.walk('c:\\', test, f)
    f.close()
    print '\nScan complete. Check \'C:\\mp3scan_results.txt\' for
results.\n'

res = raw_input('Press ENTER to quit.')
---end mp3scan.py------

I don't have access to the computer it was run on( it's a friend's), but I
think it's Win98. I e-mailed him the pyc. Anyone know what a 'magic number'
is?


greg