got dvr, will a HD high pixel camera be a waste of cash?

[wozzzzza 0]

i have a samsung dvr capable of 704x576 recording, if i was to get a HD camera with output of 1028x596, would it record with better quality or not or what will happen?? or should i just stick with a normal 752x582 camera??

 

my current dvr - http://www.samsungsecurity.co.uk/products/digital-sp-video-sp-recorders/8-sp-channel/srd-850dc-sp-1tb#tabs-0

 

camera im thinking of getting http://samsungcctv.com.au/samsung-box-camera/prod_2.html