Disklavier

Hi,

Has anyone connected and used a Yamaha HS8 orgen (1988 model) as an
tone.G unit with a Disklavier? Would be interested to know the detail
and how it worked etc?

I know the format used by the MDR3 Diskdrive of the HS8 is unlike any
other that Yamaha uses. Does anyone have any idea what this format is? 
The diskets can be converted to Disklavier midi format 0 using a PC &
Cakewalk but cakewalk records only the 1st channel and plays piano
sound. The other channels simply disappear. Any idea on this one. 



Thanks
Budds