http://www.supercircuits.com/Digital-Video-Recorders/ - DVR recorders are not just used for recording TV shows anymore. There are now DVR security systems that allow businesses to record and monitor events in their business establishments and save them for future reference if there is a need to view images captured on the digital video recorder. When choosing a DVR, make sure that you speak with a security expert if you're planning to have one installed within business premises.