Like many I have changed my organ several time and usually finish up with quite a few useless floppy disks, I have just changed again and with the newly acquired Roland I went on the quest for disks and have had some terrific help from members who have done a tremendous job in helping me with getting some registration disks, my thanks to all.
But I still finished up with about 20 or so disks which would not format in the Roland, half way through the format it would reject the disk saying it is damaged.
it's not the cost because they are quite cheap but the only option was to bin them. Now this may not be news as I am sure it's happened before but I had run out of my new disks so I ran a couple again in the Roland and again the organ said damaged disks, so I formatted in the computer and then formatted them again in the organ and hey presto they worked !
So don't throw your old disks away until you have tried this. Ken (H)