Most hard drives make certain sounds when they start failing, but every drive and brand of drive is different. Data recovery company Data Cent has put together a database of sounds that let you know what's going wrong with your drive.
If you hear your hard drive making some weird noises, it's possible that it might be nearing the end of its life. With Data Cent's bank of failing hard drive sounds, you can diagnose the most likely culprit of the problem, back up your data quickly, and take it in to see if its salvageable. Whether you've got a Western Digital, Seagate, Maxtor or other brand drive, Data Cent probably has a recording of the sound you're experiencing, and you can move on from there. Hit the link to check out the database. Photo by DijutalTim.