D-Link DNS-320L User Manual page 174

Section 4 - Configuration
To create a multimedia library, go to Application Management>>Multimedia Services.
Click the Add button to connect Multimedia Shares to a Volume. Select the
Volume or folder and click Apply.
The maximum shared folders in multimedia shares settings is limited to 10.
The wizard initializes the process and compiles the data.
D-Link ShareCenter DNS-320L User Manual 168