... playback. 4Channel D1+4Channel CIF real-time preview H.264 dual-stream compression DVR8608H 8ch stand alone DVR Features ... Channel4Search ModeTime/Date, Alarm, Motion Detection & Exact search (accurate to second)Playback FunctionsPlay, Pause, Stop, Rewind, Fast play, Slow ... Previous camera, Full screen, Repeat, Shuffle, Backup selection, Digital zoom(any size)Backup ModeFlash drive / USB HDD / USB ...