A brief description of ZoneMinder, what it does and
the design philosphy behind it. Taking a few lines
from the ZoneMinder web site:
"Most commercial 'security systems' are designed as
a monitoring system that also records. Recording
quality can vary from bad to unusable, locating the
relevant video can range from challenging to
impractical, and exporting can often only be done
with the manual present. ZoneMinder was designed
primarily to record, and allow easy searches and
exporting. Recordings are of the best possible
quality, easy to filter and find, and simple to
export using any system with a web browser."

Zoneminder also allows monitoring of each camera,
but the primary mission is the capture and storage
of security camera data, it may do this based on
motion detection, or continuous recording, or a
combination of these two and other additional
capture systems.

This system host a collection of cameras, they are
listed here:

The following link takes you to the ZoneMinder system: