I don't do camera systems for a living but I have been doing them since the cameras had vidicon tubes in them. I've even repaired quite a few of them. I'm a tech consultant for a manufacturing plant now and handle all of the IT, control systems, and all of the facilities and electronics there. Trust me I can handle it. If you read my posts I recorded the screen on a cell because the NVR has a crappy export setup and I needed the flashes for the police.Looney hates seeing people post video or pics that were taken from their cellphone of the monitor LOL.
He says learn how to export out LOL. But in your case you said the crappy NVR couldn't export out to see the flashes LOL.