Disklavier

" i have a hard time buying the required disk (720k)."
Try:
A mail order source that you can get 10 DSDD disks for around $4.00 is:

World Wise Computer Supplies
800-994-7344
or in Columbus OH  614-279-6886

Try Quill for DD floppies: 50 bulk pack floppies for about $20: 
Order #7-10315FB     1-800-789-1331. 

" is there a way to convert my 1.44 mb disk ( i have plenty) to 720k."

If disk reliability is important, "fooling" a FDD by taping over the hole of a HDD and reformatting to 720K (DDD) is not advisable.

Mark Wisner
Piano Service
Yamaha Corporation
mwisner@...