After banging my head against my keyboard with my GeoVision NVR system crashing all the time I decided enough was enough. So I thought HD-SDI would be worth a try and I am glad I did.
This small DVR packs a lot of power to display the cameras at full 1080p with smooth video. It would be hard to go back to choppy video or low resolution cameras after seeing these in action.
Setup was also much easier than with my old NVR. I just plugged in the cameras and was good to go!