I have heard that if a DVR is set to record a low frame rate, such as 1 frame per second, the DVR could be recording that frame from anywhere in the 1 second block of time. Is the spot that the DVR records the frame in that 1 second block of time consistent of does the spot vary?
For example, if a second is divided into 30 units, does the DVR record the frame at unit 1 out of 30 each second or does the DVR record at unit 1 out of 30 in 1 second, unit 5 out of 30 another second, unit 29 out of 30 another second?
Is the DVR consistent - recording at the same unit in the 1 second block or time or is the DVR inconsistent - recording at different units in the 1 second block of time?
Does the DVR recording consistency vary from manufacturer to manufacturer?