IC Realtime Max Series: 4/8/16 Channel D1 1.5U Standalone DVR - Manual (Page 42)

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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.
z
Mark Manager
Click the mark manager button on the Search interface (Figure 4-12); you can go to Mark
Manager interface. See Figure 4-16. 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 4-16
z Modify
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.
z
Delete
Here you can check the mark information item you want to delete and then click Delete button,
you can remove one mark item. .
Note
z
After you go to the mark management interface, system needs to pause current playback.
System resume playback after you exit mark management interface.
z If the mark file you want to playback has been removed, system begin playbacking from the
first file in the list.
4.4.4 Multiple-channel Preview