File format differences between the NVR set and web viewer backup files

Summary:

The following describes the time difference reflected in file names during backup in Webviewer and Local (NVR Set) when exporting recordings from an embedded NVR (e.g. PRN, XRN, QRN Series).

	NVR Set	Webviewer
Time in the file name	Local Time of NVR	UTC Time(GMT+0)
AVI Backup File name format	YYYYMMDDHHMMSS{start}_0000_ CH#.avi	[CH#] YYYYMMDDHHMMSS{start}_ YYYYMMDDHHMMSS{end}_.avi
Subtitle	Support(by a separate “smi” file)	Not supported

Details:  

You can either get AVI backup file via accessing NVR Set directly or from WebViewer remotely.

Below describes how they differ in each case.

Case 1: Make a Backup from NVR Set directly

The file name format: “YYYYMMDDHHMMSS_0000_CHNo.avi”

For example, if you make a backup from “14: 44: 48” to a certain time, you will get an AVI and a subtitle file(.smi) with local starting backup time and CH number as below.

20230303144448_0000_CH2.avi

Case 2: Make a Backup from Webviewer

The file name format: “[CHNo] YYYYMMDDHHMMSS-YYYYMMDDHHMMSS.avi”

If you make a backup from 14:44:36 to 14:45:27, you can get an AVI file with the following default name

[CH002] 20230303054436-20230303054527.avi

- File name is based on UTC (GMT+0) instead of Local Time.

- It includes start and end time.

- It does not support subtitle file.

- You may change the file name in the Webviewer