Please note that this article was originally published in February, 2005.

Let me start by saying that I am by no means trying to imply that DVR, NVR or any other digital or IP based video system cannot produce good quality video evidence. There are even 2 or 3 high-end, mega-pixel quality digital surveillance cameras and systems on the market today whose capabilities far exceed those of a traditional analog based system. However, to my point, it seems more often than not digital based systems are producing very poor quality video evidence regardless of the system's actual capabilities.

So why do DVRs typically provide poor quality video evidence? Here are a few of the common reasons:

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