User guide

 OSD Operation Guide: Over Write ------------------------------------------------- 18
 OSD Operation Guide: HDD Size and HDD used ------------------------------ 18
 OSD Operation Guide: HDD Format ---------------------------------------------- 18
 OSD Operation Guide: Sensor Setup Menu ------------------------------------- 19
 OSD Operation Guide: Motion Setup Menu -------------------------------------- 20
 How to backup through USB to PC ------------------------------------------------- 21
 Print Event ------------------------------------------------------------------------------- 23
 DVR Specification --------------------------------------------------------------------- 24
 Camera Specification ----------------------------------------------------------------- 25
 System Illustration --------------------------------------------------------------------- 26