Sony ICD-P620 Operating Instructions Manual page 16

Remaining memory indication
During recording, the remaining memory
indicator decreases one by one.
The memory is
nearly full.
When the remaining time of recording
reaches 5 minutes, the last one of the
indication flashes.
If the remaining recording time display
mode is selected, the remaining
recording time display will also flash
when the remaining time reaches 1
minute.
When the memory is full, recording
automatically stops and "FULL" will flash
in the display window with an alarm
sound. To continue recording, first erase
some of the messages.
1
GB
Flashing

Notes
If you press  REC when the memory is

full, "FULL" will flash with an alarm sound.
Erase some of the messages before you start
recording again.
If you press  REC after you have recorded

99 messages, "FULL" will flash with an alarm
sound. Select another folder or erase some
of the messages.