Previously, the method of tape-recording by VTR has been analog, which lowers the quality of recorded images. Frequent changing of tapes makes it very inconvenient, and if you forget, you might lose data.

Remember Murphy's Law...the day you forget to rotate the tapes is when you need the recorded data.

Digital Video Recorder (DVR), on-the-other-hand, records the video images digitally, so the recorded images are much cleaner and clearer than conventional CC-TV. Another benefits is that the images are recored digital to the hard drives, like a computer disk. Recording is performed continuously by the system, you no longer need to change tapes.

Plus, it has many of state-of-the-art functions like multi branch operations, where you can link multiple DVR units together. You can even view the images from the privacy of your own home. All this could be done through the wide area network (WAN), if your network infrastructure can support it.

Digital Video Recorder (DVR), in conjunction with CCTV, is the video recording surveillance system for the next generation. The demand for DVR/CCTV system is increasing rapidly now that homes and business are beging to see the benefits of such systems.