Network Video Recorder User Manual 
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2.  Parameters Setting for Recording 
1)  Select  Record  tab  page  to  configure.  You  can  configure  the  stream  type,  the  resolution,  and  other 
parameters on your demand. 
  Enable H.264+ Mode: check the  checkbox  to  enable.  Once enabled, the  Max. Bitrate  Mode, 
Max.  Bitrate(Kbps)  and  Max.  Bitrate  Range  Recommend  are  not  configurable.  Enabling  it 
helps to ensure the high video quality with a lowered bitrate. 
  The function is only available for IP cameras which support H.264+ stream. 
2)  Click the More Settings button to set the advanced parameters for recording and then click OK button to 
finish editing. 
 
Figure 5. 4 Recording Parameters-More Settings 
 
•  Pre-record: The time you set to record before the scheduled time or event. For example, when an 
alarm triggers the recording at 10:00, if you set the pre-record time as 5 seconds, the camera records 
it at 9:59:55.   
•  Post-record: The time you set to record after the event or the scheduled time. For example, when an 
alarm triggered recording ends at 11:00, if you set the post-record time as 5 seconds, it records till 
11:00:05. 
•  Expired Time: The expired time is the longest time for a record file to be kept in the HDD, if the 
deadline is reached, the file will be deleted. You can set the expired time to 0, and then the file will 
not be deleted. The actual keeping time for the file should be determined by the capacity of the HDD. 
•  Redundant Record: Enabling redundant record means you save the recording files in the redundant 
HDD. See Chapter Configuring Redundant Recording. 
•  Record Audio: Check the checkbox to enable or disable audio recording. 
•  Video  Stream:  Main  stream  and  sub-stream  are  selectable  for  recording.  When  you  select 
sub-stream, you can record for a longer time with the same storage space. 
3)  Click Apply to save the settings. 
 
You can enable the ANR (Automatic Network Replenishment) function via the web browser (Configuration > 
Storage  >  Schedule  Settings > Advanced)  to  save  the  video  files  in  the  IP  camera  when  the  network is 
disconnected, and synchronize the files to the NVR when the network is resumed.