Sony ICD-P620 Operating Instructions Manual page 48

Symptom
The remaining time
displayed in the display
window is shorter than
that displayed in the
supplied Digital Voice
Editor software.
The unit does not operate
correctly.
Please note that recorded messages may be erased during service or repair work.

GB
Remedy
The unit requires a certain amount of memory for system
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operation. That amount is subtracted from the remaining time,
which is the reason for the difference.
Take out the batteries and insert them again (page 9).
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