You can configure
Security Monitor Pro to delete the captured media files older than a few days.
Click on the Settings icon on the toolbar and go to the
'Video and Photo' settings tab. Select the
'Auto delete files older than N days' option. Enter the number of days and save the changes.
The media files captured before the specified number of days will be deleted automatically.
Note: This option is recommended only when you are regularly reviewing the videos and images taken from all the cameras.