Which hard drive is best out of these two?

[Pottsey]

I am having trouble telling the difference apart from these. I know I want Western Digital as there older drivers have been reliable for me.

Western Digital Caviar RE2 500GB 5000YS SATA-II 16MB Cache - OEM (HD-102-WD)

Western Digital Caviar SE16 500GB 5000KS SATA-II 16MB Cache - OEM (HD-075-WD)

From what I can gather the Caviar SE16 is better but if that’s the case why is it cheaper? I must be missunderstanding something.

 

[Pottsey]

Thanks