recording length

Hi Everyone, I have setup a HiKVision NVR DS-96128Ni-I16 with firmware Version of V4.1.66 build 200103. And 8X cameras are all set to record for 31 days & then overwrite. However the cameras appear to be recording for varying lengths of time - some are the 31 days, others are 14 days, others...

Hi all I just bought an ieGeek camera for outside, and it seems to be only recording for a few seconds at a time and not one long continuous recording... or at least a few minutes at a go... also when the motion detector sets it off, it just records for 14seconds... no more or less.. move...