small fix in the mp3 bitrate routine.
small fix in the mp3 bitrate routine.

scriptzteam/pzs-ng,scriptzteam/pzs-ng,bioboy/pzs-ng,scriptzteam/pzs-ng,bioboy/pzs-ng,scriptzteam/pzs-ng,bioboy/pzs-ng,scriptzteam/pzs-ng,bioboy/pzs-ng,bioboy/pzs-ng