Wolf, there is a Mac program named DR5Tool that uploads/downloads midi files and I think you can download/upload your DR5 info also. You can email the author Chris Dewhurst [chris@capilano.com]
I am currently using a Windows based program that does what you want. If you have any questions about the DR5, I encourage you to join the DR5 support group at...
http://clubs.yahoo.com/clubs/rolandbossdr5supportgroupGood Luck,
Ron