Monday, 6 April 2015

DVR OR NVR? WHO DOES IT BETTER?

                       We get this question at least a couple times a day from several different customers: “Is it better to have an NVR Network Recorder) or a DVR (Digital Video Recorder)?” My answer is usually the same. We tell our customers that it really is based on your personal preference and your needs. This is mainly because there are several factors that make one better than the other and vice versa.

A (NVR) network video recorder 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. An NVR contains no dedicated video capture hardware. However, the software is typically run on a dedicated device, usually with an embedded operating system. Alternatively, to help support increased functionality and serviceability, standard Linux and Windows operating systems are used with standard Intel processors and video management software. An NVR is typically deployed in an IP video surveillance system.

The (DVR) digital video recorder, was the popular choice and is still one of the popular type of systems among consumers. Due to the constant upgrades being done on the DVR systems, they don’t fall too short of the features available on the NVR. The one main difference between the two is that the DVR can be used without an internet connection but has the capability of being connected online for remote viewing. In the case of the DVR, there usually isn’t cloud storage available as some NVR’s may have, but they do come encased with an internal hard drive that allows for storage.

Difference between NVR and DVR

1.  With a Network Video Recorder, of course the video input comes from the network—the video has already been encoded at the cameras. It simply converting digital video files from one format to another.  The video is then streamed to the NVR for storage and it can be viewed remotely due to it being on a network.

With a DVR, it does the encoding at the DVR itself, not at the individual cameras. Since it digitally compresses the analog feed, it must be located near the feed.

2.  Another difference between a DVR and an NVR is access.  To view the video that was recorded, you need to be at the DVR (or burn a disk if you want to view it elsewhere). 

 But with an NVR, due to its very nature of being on a network, you can view it remotely.

3.  Finally, paring security cameras with NVR’s is actually more restrictive than doing so with DVR’s.

  So take caution when you buy your cameras and make sure they’re compatible before doing so.

Certain situations may call for the use of an NVR because you’re not allowed to drill holes in the house or using a DVR may be your best option since your internet speed and range isn't exactly dependable. There are many factors that play into your decision between the two and don’t let one person’s opinion sway you one way or the other. It all comes down to your preference and what you’re looking for.

DVR vs NVR Comparison




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