D-Link DCS-5300 User Manual page 53

FTP put
If the suffix is added, the captured date and time can be easily differentiated from the snapshot file name in either sequential
snapshots with
or event operation. For instance, "video@20020102030405.jpg" means the JPEG image was captured at 4 minutes and
date and time
5 seconds after 3 o'clock, January 2nd, A.D. 2002. If the suffix is omitted, the file named "video.jpg" on the external FTP
suffix:
server will be refreshed at the specified interval.
Click Apply
D-Link DCS-5300 User Manual 52