Hello I have to insall some camera's and a system where they can very easily rewind and look at the last 5 minutes. It needs to be very easy, hopefully like two mouse clicks or a press of an IR remote. All NVRs can record and playback, also I could build a linux/windows machine that could do it with software too. My trouble is finding a DVR or computer software that I know has very easy instant playback/replay. so if anyone knows of a NVR or software that will be easy to use for the technically uninclined please let me know thanks!