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March 19, 2010

Security DVR Compression Methods

Security camera methods used to capture, transmit, and store data have greatly improved in a relatively short period of time. In order to discuss the security camera compression methods used with digital video recorders (DVRs), we need to have an understanding about how and what compression is and what methods are used to store security […]
September 15, 2009

What is a Substream?

Some of the newer DVRs on the market offer a feature called either a substream or a dual stream. A sub stream is used for viewing your DVR over the LAN or WAN when the resolution or frame rate of the recorded video is too high for the available bandwidth. For example, if your DVR […]