Sony PCG-GRX500 VAIO User Manual page 156

My floppy disk drive (optional) cannot write to a floppy disk.
 Check that the optional, external floppy disk drive is properly connected to your notebook. See
External Floppy Disk Drive
 If the floppy disk is write-protected, disable the write-protect feature or use a floppy disk that is not
write-protected.
for more information.
Connecting an
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