Analog CCTV vs HD-SDI CCTV

Traditional CCTV camera systems were designed in a time when standard definition television was the only option to display the cameras. These days, when most people have upgraded to HDTVs, standard definition simply doesn't deliver the high-quality picture you've come to expect with your high definition television. If you've upgraded to high-definition displays, shouldn't your cameras match that quality?

Standard analog CCTV cameras max out at 700 TV Line resolution and the stanard DVR can only display and record those cameras at D1 resolution (704x480). That is the maximum resolution that standard definition televisions can display and it's a big difference from what you get on a HDTV.

HD-SDI offers a resolution far beyond what normal standard definition DVRs can do. While a CIF or D1 DVR may be pretty common, the small resolution they offer cannot compare to the 1080p resolution you get with HD-SDI.