... usage• Powerful video playing back functions, including playing back, pause, stop, fast-forward, single-frame play and image capture.• Support recorded ... reduce HDD usagePowerful video playing back functions, including playing back, pause, stop, fast-forward, single-frame play and image capture.Support advanced ... EzCAP 3104B channel USB DVR,USB DVR,DVR,Cheap DVR,video capture,video grabber-EzCAP3104