Nikkei EXTREME X5 User Manual page 30

SETTINGS I N P L A Y B A C K M O D E
While in playback mode, press the "Menu" button to access
the settings.
MENU
Lock
Delete
Use this function to protect the files from
being deleted by accident.
【Single】/【Lock All】/【Unlock All】
Use this function to delete a single file or
all files.【Single】/【All】
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FUNCTION