Problem importing certain MP2 files

Hi,

I'm a developer of Audacity [1] and we use libmad to import MP2/MP3
files. While it generally works fine (thanks a bunch for the great
library!) there are some MP2 files libmad does not import (see [2] for
an example, about 4.4 MB). When trying to play this file with madplay
0.15.2 on Ubuntu, the following output is given:

markus@markus:~$ madplay nb00.mp2
MPEG Audio Decoder 0.15.2 (beta) - Copyright (C) 2000-2004 Robert Leslie
et al.
error: frame 0: bad bitrate/mode combination
0 frames decoded (0:00:00,0), -inf dB peak amplitude, 0 clipped samples

The file does play fine with mplayer, though.

Thanks for any response!
Markus

[1] http://audacity.sourceforge.net/
[2] http://www.mesw.de/opensource/nb00.mp2