Just info for those who want it... http://www.mp3-converter.com/mp3codec/
http://www.codeproject.com/audio/MPEGAudioInfo.asp http://mpgedit.org/mpgedit/mpeg_format/mpeghdr.htm http://www.id3.org/id3v2.4.0-structure.txt http://www.personal.uni-jena.de/~pfk/mpp/sv8/apetag.html
