Can I record continuously? And how much recording will I have?

Continuous recording is possible. You could also record by schedule, whereby recording takes place only between a set period of time, or by motion, whereby recording takes places only when the camera senses some movement. The capacity of the hard-disk inbuilt in the DVR will vary according to the number of cameras on the same DVR, and depending on whether the cameras are recording continuously, by schedule or by motion. The resolution of the cameras also affects the recorded storage time.