Comparison of CCTV DVR System and CCTV VCR System

• Different with analog-style video recording system (CCTV VCR), CCTV DVR digital video recording system will convert analog video to digital systems, and compressed stored on hard disk (HDD) in digital or video tapes (DAT). Compared to CCTV VCR, CCTV DVR have more advantages applied to monitor area.

  Kind  Item

                    DVR Systems   CCTV VCR System

  Video recording     Digital           Analog

  Storage media       Hard             Video

  Image permanence    Permanent     6 months

  Image quality         Clear     There will be wear and tear

  Screen display mode   4,8,16   Splitter can be installed four multi-picture display

  Image of inputs       16                 8-way

  Transmission     TCP / IP, Internet, PSTN   Without

  Motion Detection     Have               Need to install sensors

  Night Mode           Have     An additional installation of expensive equipment

  Image Print            Have                Without

  Durability         More than 5 years              2 years

  External sensor            Have              Adding an additional

  Maintenance     No additional expenditure    The high cost of tape supplies

  Architecture              Simple                Complex

  The use of space          Small                 Need more space

  Conditions of the digital watermarking technology
  In general, CCTV DVR security are insufficient, DVR systems should used with digital watermarking technology in order to increase their security, and sometimes also use DVR plus password. However, the market needs a more efficient tools and programs in order to achieve more secure devices. As the DVR has been resolved a number of digital multimedia resources legal issue, so CCTV DVR system with digital watermarking undoubtedly is a comprehensive security system tool.