hi....Mac....what package is that you are talking about. I looked at he BIAB with real tracks but did not see the USB drive. my laptop is not that big so an ext drive is not a bad idea. maybe it is a lager more $$ package you are talking about.

now as far a capturing some great musicians' performances on midi... that would be another story.

are there that many styles in BIAB that you can find something for most any song?

it sure would be easier if there were good midi files out there. to do it totally with BIAB you would have to get all those songs in their original recording and listen ad figure them out. I don't know if I am going to live that long. ;-)