Welcome to the comprehensive guide by Backstreet Surveillance on NVR vs DVR security camera systems. NVR (Network Video Recorder) and DVR (Digital Video Recorder) are both systems used for video surveillance, but they work differently. NVR systems use IP (Internet Protocol) cameras that transmit video over a network, offering higher resolution and easier installation. On the other hand, DVR systems use coaxial cables and analog cameras, making them more traditional and often less expensive. NVR offers more flexibility and better video quality, while DVR can be simpler to set up for small systems. Understanding the differences can help you choose the best system for your security needs.