... resolution720x480,720x240,360x240 (NTSC) / 720x576,720x288,360x288Compression formatMpeg4/H.264modeTiming, motion detect, alarm, manualPre, Post record1~10 secHDD4 HDD(Auto over write ... )SearingTiming, motion detect, alarm, manualFast x128 , slow, Image by imagebackupDVD copy, CD copy ...