Anybody know about IP CCTV cameras ??. I have four hd-sdi cameras around my home and a likewise DVR . The problem is one of the CCTV cameras has gone a bit iffy . I was wondering if I replaced the iffy camera with a new IP one and has time goes by gradually replace the rest . Ok the bit I am not sure about is how do I record the cameras ?? I have never used cloud or any other net based storage I think you can get a nvr recorder but are they standalone or do you need a pc ?? I don't really want to use a pc . Any suggestions ?? Thanks Keith .