It would be much better that Western Digital company produces quality consistent drives. Both are the same model, same capacity, same firmware, everything the same, except there is one year difference in manufacturing and origin is from different country. One is Malaysia, the other one is Thailand. I believe I incorrectly wrote countries in the former post.
I even tried to exchange places of the drives, but the newer drive is still louder.
Earlier, I could sleep fine with computer running. Now, falling into sleep is much harder while hearing occasional hard seek noise.
Any experiences? Are all new WD caviar black drives louder, or I just had bad luck?