Version:            (using KDE Devel)
Installed from:    Compiled sources
Compiler:          gcc 3.2.3 
OS:                Linux

In the file mpegheader.cpp line 249 of taglib-1.4 the calculation of 
the frame length is wrong. At this time it is implemented as follows:

if(d->layer == 1)
   d->frameLength = 24000 * 2 * d->bitrate / d->sampleRate + int(d->isPadded);
else
   d->frameLength = 72000 * d->bitrate / d->sampleRate + int(d->isPadded);

This must be replaced by:

if(d->layer == 1)
   d->frameLength = 24000 * 2 * d->bitrate / d->sampleRate + (int(d->isPadded) * 4);
else
   d->frameLength = 72000 * 2 * d->bitrate / d->sampleRate + int(d->isPadded);

See http://www.dv.co.yu/mpgscript/mpeghdr.htm section 'How to 
calculate frame length' for details.