A system and method for scalably monitoring and/or recording video data, preferably through a distributed network such as a computer network for example. The system and method of the present invention are characterized by the separation of functions, preferably into separate modules, for accessing the monitored and/or recorded data, and/or for accessing different hardware and/or software components of the system. This separation optionally and preferably is performed by restricting access to each of a plurality of layers or hierarchical levels in succession, such that access to the next layer or level is more preferably not permitted until access to a previous layer or level is approved. The system and method of the present invention also preferably provides security through this separation of functions. According to a preferred embodiment of the present invention, there is also provided a system and method for optionally adding the capability for monitoring and/or recording at least one type of media to an existing monitoring/recording system, as an "upgrade". This preferred embodiment of the present invention may optionally and preferably be combined with the previously described system and method for scalably monitoring and/or recording video data.

 
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