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How much camera footage can the typical DVR hold?
According to Ray, video system archive times can vary tremendously from DVR to DVR. There are four factors to consider:
- You must take into consideration the size of the hard drive or drives in the DVR. 2.
- Then consider the total number of cameras on a system. The more cameras one has on a single DVR, the more hard drive space is needed.
- Then note that frame rate and video recording quality has a major impact on eventual storage times.
- Another factor is whether a DVR is set up for continuous recording, or recording for motion only.
- Finally, the video file sizes can also vary between different DVRs depending on the type of compression they employ.
“A typical DVR set to record 24/7 at the highest frame rate and highest recording quality isn’t going to afford very much archive time at all unless is it outfitted with several, large hard drives designed for this type of recording. Today’s newer high-end DVRs set to record only during motion at the highest or just under the highest quality setting at 7 to 15 frames per second (FPS) can generally offer end users anywhere from a 7-14 days” said Ray. “Higher end DVRs outfitted with large capacity hard drives can usually be programmed to give the operator 30 or more days of archive time with satisfactory quality and frame rate settings. Cheaper or entry level DVRs are going to provide much less archive time. Reducing frame rates and recording quality can achieve more archive time, but one must walk a fine line between forgoing video quality simply for the sake of archive time.”