71Disk managementStep 1Press the [SUB MENU] button.→ The "Sub Menu" window will be displayed.Step 2Move the cursor onto the [Setup Menu] button, andthen press the [SET] button.→ The setup menu will be displayed.Step 3Move the cursor onto "Maintenance", and then pressthe [SET] button.→ The [Product information] tab of "Maintenance" ofthe setup menu will be displayed.On the [Disk] tab of "Maintenance" of the setup menu, it is possible to perform operation relating to the harddisk drives in the recorder or in an optional extension unit and SDHC/SD memory card.The following are descriptions of how to delete images recorded on the hard disk drives and of how to format(initialize) an SDHC/SD memory card.Delete images recorded on the hard disk drives manuallyThe following are descriptions of how to manually delete images recorded in the normal recording area and theevent recording area on the hard disk drives in the recorder.By designating a time and date, all the images recorded until the day before the designated time and date willbe deleted. It is useful to delete unnecessary images.Important:• Note that the deleted images cannot be recovered and the remaining disk capacity will not increase eventhough deletion is performed.Note:• It is possible to delete recorded images automatically when the set days have passed from the day theimage was recorded (HDD auto deletion). Refer to the Installation Guide for further information.