162.2 Recording2.2.1 Setting the recording-related menu- This is used to set the detailed items in the menu when setting the recording. Select one of theresolutions. It is possible to select among 720Ⅹ480 (D1), 720Ⅹ240 (Half D1), 360Ⅹ240 (CIF), incase of NTSC and among 720Ⅹ576 (D1), 720Ⅹ288 (Half D1), and 360Ⅹ288 (CIF), in case of PAL. Itis possible to set the quality of video recording in each channel by deciding which channel of theinput images to connect the audio with. The quality of video recording includes four stages:NORMAL, LOW, HIGH and HIGHEST. It is possible to set the quality within this scope by channelsor in the same way for the users‟ convenience. And finally, it is possible to select the condition ofthe video recording. See the 3.2 Record-setting Menu for details.2.2.2 Setting the recording conditions- You have 4 choices of REC1, REC2, REC3, NONE for recording condition according to the settingvalue of SCHEDULE ting. See the 3.2 Record-setting Menu for details.2.3 Playback2.3.1 Direct playback by using the button Play- Press the button “Play” for playback. The playback starts to work depending on the set channel;playback‟s starting point or audio playback.2.3.2 Audio playback-. In order to play the recorded files with audio link, use the mouse to select a channel and clickthe right button of the mouse and the audio-related menu will be viewed. After the audio isturned on, click the button “Play” to playback. Press the button “OK” to use the keys on the frontside of the DVR and press the button “OK” again to view the audio-related menu. After the audiois turned on, click the button “Play” for audio playback.2.4 SearchThe DVR has 4 search modes: