HELP BACKTRACKER M88 Midi file player. Can anybody help. I have the Backtracker M88 and it is driveing a Korg NS5R. It doesnt transmit excl message to put the NS5 into XG mapping. The information is in the midi file and I have no problems with the same midi files when I use my ROLAND MC 500 sequencer. Can aneybody resolve this problem for me.