Network Video Recorder

Network Video Recorder

A network video recorder (NVR) is a software program that records video in a digital format to a disk drive, USB flash drive, SD memory card or other mass storage device. NVRs are similar to DVRs but with several distinct differences. NVRs take video input over a network, as opposed to directly connecting to the NVR via a video capture card or tuner. The main distinction being that video on a DVR is encoded and processed at the DVR, while video on an NVR is encoded and processed at the camera, and streamed to the NVR for storage or remote viewing. An NVR contains no dedicated video capture hardware. However the software is typically run on a dedicated device, usually with an embedded operating system, so NVRs are often mistakenly called DVRs.

There are hybrid systems which incorporate functions of both an NVR and a DVR. These are usually also referred to as NVRs.

See also

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