I suspect the answer to this is somewhere on here but I can't find it!

I recently bought a Yamaha P155 and it's great. Love it – except for one thing: If I transfer a list of midis from my Mac to USB memory stick, when I plug it into the P155, the tracks appear in a different order – and not a logical one either!

I've tried numbering the tracks in a variety of way (eg 1, 01, 001) but none of these systems seems to work.

Can anyone help?

By the way, no problem with the Clavinova – the tracks appear exactly in the right order.