22[SYSTEM]▪ VIDEO FORMAT : Set the Camera Type (NTSC / PAL)If select AUTO menu, DVR recognize camera type automatically.NOTE: If NTSC and PAL cameras are connected simultaneously error may occur.▪ LANGUAGE : Select the language.(English, Germany, French, Spanish, Japanese, Chinese, Italian, Russian, Dutch and Korean)▪ KEY TONE : Turn on/off the buzzer sound of key.▪ UNIT ADDRESS : Sets the DVR ID.This ID can be used to control multiple DVR’s with one IR remote control.▪ BASE CAMERA NO. : Sets the beginning number of camera.Used when multiple DVR’s are in use for one installation▪ MENU TIMEOUT : Sets the auto logout timer of the system.▪ PLAYBACK PROTECT : Prohibits the recording of more than the selected number of days.(Select 0 to 99 days. If set 3 days, can not playback the data older than 3 days.▪ BACKUP CONFIRM : Confirms the backup process.▪ HDD OVERWRITE : Select on/off to overwrite data on Hard disk.NOTE: If set to [OFF], recording will be stopped automatically when disk is full.▪ PLAYBACK MODE : This is playback quality option if the resolution is set D1.[FRAME] : Played with original video.[FIELD] : Played with de-interlace feature.5.1.1 GENERAL