Web Client Operation 
 
 
233 
Note 
Usually, system can playbacks previous N seconds record if 
there is such kind of record file. Otherwise, system playbacks 
from the previous X seconds when there is such as kind of 
record. 
 
Mark Manager 
Click   on the Mark List (Figure 12-115) and the following window is displayed. 
System can manage all the record mark information of current channel by default. You can 
view all mark information of current channel by time.  
Figure 12-116 Mark Manager 
 
Modify Marks 
Double click one mark information item, you can see system pops up a dialogue box for you to 
change mark information. You can only change mark name here.  
Delete Marks 
Here you can check the mark information item you want to delete and then click Delete, you 
can remove one mark item.  
 
Note 
•  After you go to the mark management 
interface, system needs to pause current 
playback. System resume playback after you 
exit mark management interface.  
•  If the mark file you want to playback has 
been removed, system begins playback from 
the first file in the list. 
 
Downloading Video 
After generating a list of recorded video clips by clicking File List, select the files you want to 
download, then click   Download (see Figure 12-111).