... Realtime full D1 recording, and real time multi channels playback3).Support VGA ... for remote live viewing,recording,playback,setting,system statu,event log,email & ftp function10 ... StandardsPAL 625 line,50 f/s;NTSC 525 line,60 f/ ... CompressionG711ABidrectional TalkSupportRecord &PlaybackRecording ModeManual>Alarm>Video Detection>ContinuousPlaybackMulti channels playback simultaneously,pause,stop ...