http://www.supercircuits.com/Network-Video-Recorders - A network video recorder, or NVR, is a great addition to any business wanting extra security. This is similar to the IP camera DVR systems that many security companies are offering these days, along with an IP camera recorder that is connected to a storage device that archives captured videos. Having an NVR installed in strategic locations within your business establishment can ensure that trespassing and break-in attempts are closely monitored.