lizmclaughlin27

I recently put up extra cameras which required me to get an 8 channel DVR. Loaded it all up and away we went. All was good for about 2 months. The DVR was recording away. I even managed to take footage of the DVR onto my PC. Dvr still recorded away. Then suddenly, I couldnt get it to record. I fiddled about a bit through the menus and I got it started again. But, this was short lived. It stopped again after ony about 15 - 20 minutes (I cant be exact). This keeps happening. I seem to cut the power and it starts again but then it stops. It says the HDD is "ok" and there is 1000gb free. Where do I go from here?? Is there something silly I am missing here??? Any help Please.

The overwrite is enabled. It seems to be only recording for 15-20 minutes. Anything else possible????