Casio Photo Loader Version 2.1 Instruction Manual page 22

If the following message appears when loading with "Sort by
recording date (R)", see "Handling image loading errors (for
"Sort by recording date(R)")" on page 26.
See "Checking communication status between digital camera
and Photo Loader (for RS-232C connection)" on page 9 for
Communication settings.
7.
Subsequent operations are the same as those for operation 9
on page 17.
22