Dahua NVR5208-EI User Manual page 240

Select the storage device, and then click Backup.
Step 3
You can cancel the selection of the files that you do not want to back up.
●
Select Combine Video to merge several videos into one.
●
5.8.2.8 File List
On the search page, select a channel, and then click
manage the files of the selected channel.
Play.
●
Double-click a file to play.
Search.
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Select a specific time and then click
Lock or unlock files.
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To lock files, on the file list, select one or more files, and then click
not be overwritten.
To unlock files, click
Go back to the previous page.
●
Click
Figure 5-105 Backup
. and then select one or more files and then click Unlock.
to return to the page with calendar.
to view the file list. On the file list, you can
.
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User's Manual
. The locked files will