Panasonic DMC-SZ3V Owner's Manual page 127

The file numbers are not recorded consecutively.
•
When you perform an operation after taking a certain action, the pictures may be recorded in folders
with different numbers from the ones used prior to the operation.
The file numbers are recorded with previously used numbers.
•
If you insert or remove the battery before turning off this unit, the folder and file numbers for the
pictures taken will not be stored in the memory. When this unit is turned on again and pictures are
taken, they may be stored under file numbers which should have been assigned to previous
pictures.
The card cannot be formatted.
•
Formatting is not available in Intelligent Auto Mode. Switch the recording mode to another one.
(P23)
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