You can still use your Windows version of Band-in-a-Box on a Windows computer. After you purchase the Mac version of Band-in-a-Box from the "crossgrade" section of the price chart, then you would install this to your Mac computer. You cannot run a windows band-in-a-Box on Mac and vice versa. But your can open and use the same SGU/MGU song files on both, as long as both have the same RealTracks installed.


Best,
Chantelle