Till today I used 3 hdd, first form Segate, second Hitachi and Now Samsung.
7 years Old Segate make noise like Crackers from last 2-3 yrs, still didn't seen any problem.
Hitachi Deskstar (k) (i don't remeber exact) but makes noise just from 3rd day I buy, I return it to dealer.
Now have samsung 80GB ATA, no noise so far, silent running.
May be SATA/PATA are latest and makes noise due to high performance and speed.