Disklavier

First, the software to do this, although legal, has dubious 
overtones (i.e. it allows duplication of the original Yamaha disks, 
which they're obviously very touchy about).  For this reason, there 
aren't many programs about that work, and Yamaha are certainly not 
going to help anyone write more! 

The only FREE ones that work properly are the utilities that you can 
download from here, and because they bugger about with the PC 
internally (you're not supposed to be able to write DD disks), they 
are written for DOS.  Hence, they don't work at all under XP.  

The easiest way is to use a computer with Windows 95 or 98 on it 
(unless of course you still have a DOS PC around!).  They work fine 
on these.

Failing that, you have to consider whether you really want/need the 
files on floppy at all.  Many users on this site have found that 
controlling the piano directly from a PC is so much more flexible 
(me included, and I was very much against the idea to start with).

Regards


Charles