Hi, MIDI-OX (www.midiox.com/) will do the job but you'll also need to get MIDI-Yoke (www.midiox.com/myoke.htm) for virtual MIDI ports so you can see what's being transmitted. It seems to be very accessible but I am light-dependent. Albert -- "Omar Binno" <omarbinno@xxxxxxxxx> wrote: Hi, I'm using the Motif XS with Sonar, and when I'm recording anything onto a midi track, I'm also getting unwanted sysex data. I'm not sure if Sonar is triggering the motif to do a bulk dump, or if the Motif is sending the data. I posted the issue on the cakewalk forum, and someone recommended that I run a program called Midi Ox to see where the data is coming from. Does anyone have any suggestions, and has anyone on here used this program? Thanks. Omar Binno www.omarbinno.com