MP4 sample doesn't detect sample_rate correctly.
http://www.mediafire.com/?2gydwglwwwn
VLC throws a
Invalid sample per packet value for qt_version 1
And indeed, p_sample->data.p_sample_soun->i_sample_per_packet = 0 while p_sample->data.p_sample_soun->i_qt_version = 1
MPlayer, xine and vlc with --demux avformat play them perfectly.