Operation Manual
User Manual of Digital Video Recorder 
93 
  The   indicates the start time and end time of the record files. 
   represents  normal  recording  (manual  or  schedule);   represents event recording  (motion,  alarm, 
motion | alarm, motion & alarm). 
  Playback progress bar: use the mouse to click any point of the progress bar to locate special frames. 
6.1.2  Playing Back by Time 
Purpose: 
Play back video files recorded in specified time duration. Multi-channel simultaneous playback and channel 
switch are supported. 
Steps: 
1.  Enter playback interface. 
Menu>Playback 
2.  Check the checkbox of channel(s) in the channel list and then double-click to select a date on the calendar. 
Figure 6. 5 Playback Calendar 
In the Playback interface: 
The toolbar in the bottom part of Playback interface can be used to control playing process. 
Please refer to Chapter 6.1.1 Playing Back by Channel for the playback interface and toolbar description. 
6.1.3  Playing Back by Event Search   
Purpose: 
Play back record files on one or several channels searched out by restricting event type (motion detection, alarm 
input or VCA). Channel switch is supported. 
  Playback by alarm input search is not supported by DS-7100 and DS-7200HGHI series DVR.  
  DS-7100 does not support VCA type. 
Steps: 
1. Enter the playback interface. 
Menu>Playback 
2. Click   and select   to enter the Event Playback interface. 
3. Select Alarm Input, Motion, Line Crossing Detection, Intrusion Detection as the event type, and 










