Midi Formating, RolandMC500mkII read by Mac G-3,9.2.2 Options

[ricsimp]

I have a roland MC500mkII sequence recorder, I need to find
a program that will let my Power Macintosh G-3 ("98")9.2.2
read and edit the data which is formated on the Roland.
I have PC exchange loaded but that dosen't help.
it still wants me to reinitilise my floppie disk which will
erase all data.
Thank You,
(seeking Knowlege)
Ricsimp@earthlink.net