I recently brought a new WD 200gb SATA HDD. It is functioning fine... but the problem is it makes the chirping sound everytime its accessed. Its not very loud. But to my knowledge, isnt a new HDD supposed to be silent? I got the chirping sound in my old HDD only after using it for 3 years. I havent even loaded it up yet and am just using around 12gb of the 200. Should I return it or get it exchanged??