Kalip

Since normal HD monitor only has a resolution of up to 1080P. (1920 X  1080)
Does it make sense installing a 5 MP HD Analog surveillance system if you’re not using a 
4K monitor with it?
As I understand it the 5MP has a resolution of 5MP 2560x1920.
 

Thank you for your responses.

The manual said the at 5MP the camera could be set at 12.5 or 20 frames per second.
The cameras are currently set at 12.5 frames per second, motion detection is turned off 
and also, it is also set at h265.
I neglected to mention I formatted the hard drive also to no avail. 
I am wondering if changing the frame rate to 20 frames per second would make any 
difference.
 

I recently installed a Hikvision CCTV system with 5  5MP Turbo Varifocal Motorised Cameras, and a
DS-7208HUHI-K1 DVR with a Western Digital Purple 2TB Hard Drive 
Although the estimated recording time in days says 16 days, I noticed that It has actually recorded
46 days so far and used only about 5GBG of the 2T Hard Drive. 
What could be causing this discrepancy?
 

Hello I am new to the forum I recently installed a CCTV system at home