Advice on X Vision HD IP CCTV system

[rolyberkin]

I have an Xvision XRN 1609 system with six cameras, I have feeds coming from all six cameras to the NVR which I can view live time on the monitor, in the recording screen it looks like all six are feeding into the disc, however if I try to view three of the cameras all I get is a black screen? Any ideas as to what is wrong would be appreciated?

 

[The Ghost]

Redacted

 

[MJPD29]

Sounds like a possible issue with hard drive?

 

[buzzlightyear]

Sounds like a possible issue with hard drive?

blanky blank.

 

[rolyberkin]

Sounds like a possible issue with hard drive?

I have three cameras recording and three not so doubt it is a hard drive problem?
I also have three cameras which have developed a fault after four years, never buying Xvision again!