Roland s50 disk help, please answer

A day ago i found an old roland S50, one of my father's old keyboard: it still works great , but just one of the old disks is working. I've phoned to all of music shop of my city, but the disk are no more sold! So,
how can i do? Can you tell me if somewhere in the web i can find the disks and how to format and copy them on my Pc?
Thanks

To use Roland disks with your PC, you'll need the SDISK program. SDISK can read/write disks from various Roland samplers.
In the Roland U.S. site at http://www.rolandus.com/SUPPORT/SOFTWARE/PCSAMP.HTM you'll find the Sdisk utility and the System disks for download.

Also check the Roland Samplers Users Group (SGROUP) FTP Archive at www.generalconcepts.com/sgroup
for the Roland Sound Library sample disks.

Mgomes