All - I am on a mac and up until the MBB software manager beta and 1.6x beta update I had been successful in exporting your midi song parts out of MBB and dragging them into garage band to manipulate them (key change or other). Since the MBB update I get the attached error. I assume it is me and the mac environment but I need to ask - are you all able to open each other songs in your tools you are using or is this a bug in the new MBB software? I think most of you are using reaper of logic on a windows machine for your song editing? So far on the mac in garageband and aria maestosa I cannot open the exported .midi files any longer. I even downloaded reaper for the mac (eval only) and the midi files are empty that I load in. This is very frustrating for me. If you have time to try importing a midi part from another person’s song into your tool and are successful or unsuccessful can you let me know. If you are successful can you let me know what tool you are using. Thanks for the help. Also I need to add I am successful in downloading full midi songs from the web into garageband and extracting the drums and bass and importing into the midi parts into MBB. So it appears to only be midi parts from songs that have been compiled in .sng and uploaded that are problematic.