Digital Video Recorder-Based Systems

The arguments for:

Digital video recorder systems can be built from small systems to fairly large systems over time with minor incremental cost for each step.

The organization has only to buy as many DVRs as it needs to add at a time.

DVRs can be networked together (some better than others) into fairly large systems.

The arguments against:

DVRs often become obsolete in a very short time, having been replaced by a newer recorder with more recording capacity and better features in less than two years.