Swann DVR (DVR-8CIF) , the compression and the fact its cif, you need D1 and that's not totally amazingly brilliant, nothing to do with being swann brand, I have one , it does what is said it would do. people think you need massively high res from camera and dvr, well true to a point, but the ability for optical zoom function in a must .
basically what the system will record to storage is, will be sent via lan,
In the real world most criminals that go out thieving will have clocked the camera system and hence will be covered up. the main target is early detection of inturder and follow your action strategy when it happens.
what you see on the monitor is camera res which will be many times better than on the recording and lan viewed footage.
on the sawnn system increase network bandwidth parameter, that will be limited to the slowest connection, on the lan side not a prob but on a wan will be down to the upload link speed.