recorded files are full time, is possible short them?

[spalnndsstest]

if i keep my camera coencted about 4 hours with eyeline recording just when motion is detected, i get a video

of 4 hours and i must wait the full time to review when motion hapened,

there is not some way to record in the video file just the moments of motion ?

 

 

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the second matter is: is there some way to make the camera more sensitive to movement? i move slowly and camera detect like if there was no movement at all, thats not nice :s

even if i move strong but just is a short part of the video it record nothing,

 

 

some way to solve those problems? thnk you veyr much