What is n3r file?

Answer

n3r file is a video file that the network recorder generates, and this file has i-PRO proprietary format.

The viewer software for exclusive use is required to see this video recording data (n3r file) that is acquired from the network recorder.

This viewer software is saved in "ND_Viewer" or "NX_Viewer" folder that is included the folder that video files are downloaded from the network recorder.
n3r file can be loaded and played back by starting "ND_ Viewer.exe" or "NX_Viewer.exe".

There are two kinds of n3 files: n3r is a video file and n3a is an audio file.