You're right KN7 - I too wonder just what exactly is on those disks...
Members of our club bring along disks sometimes which turn out to be full of midi files for example, when they thought they were rhythm disks to be used to play with...
If you wish jp you can send me the contents of one of the disks and I'll find out what's on it and convert it for Kn7000 use - RMepstead@btinternet.com