+1 "super DUPER real Drums"
I thought that sounded familiar - the DUPER must be the newer version.

http://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=254324

There are lots of compressed/lossless compression audio formats now that support multichannel.
In the usertrack forum there are multichannel drums but I think they are just for real band and power tracks.
Maybe if band in a box could load a multichannel audio drum file and use a multichannel file mixer you could leave it as one track but when you export it will split to separate wav files.