D-Link DNS-320L User Manual page 284

Section 4 - Configuration
Click the Backup button at the bottom of the window to go to the Backup Setup screen where you can backup the selected
recording.
Click the Play button at the bottom of the window to play the selected recording on the main playback screen.
Note: You can backup or play up to 4 selected recordings at the same time.
D-Link ShareCenter DNS-320L User Manual 278