A:AnswerYou are able to record live footage by pressing record. If you choose to record directly to the computer 24/7, than this would not be possible.
A:AnswerOnly three screws needed to mount the camera, easy to do with a power driver if you are mounting to wood or similar material. They are wired cameras, so keep in mind that you will have to route a cable from the DVR to each camera. It takes some time to do a complete install of all the cameras and the DVR.