Sanyo MBC-550 Series User Manual page 45

Type Y (for yes) if you wish to copy other disks or
make a second copy,
default drive prompt is displayed and you are back on
the operating system level.
If you type N (for no), the
Note: If either of the disks you are using has
defective tracks, DISKCOPY will not work. Use the COPY
command to back up your disks in these cases. The COPY
command will skip over defective tracks.
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