I have a new Seagate Barracuda LP ST31500541AS 1.5TB 5900 RPM 32MB Cache SATA 3.0Gb/s Hard Drive. This is my second one. The first one I had started to make clicking noises randomly. These clicking noises can be very loud. Also, the hd freezes for a few seconds when it happens sometimes. It took about 3 weeks for the clicking noises to start. They came randomly rather the drive was idle, or if I was surfing the internet. In other wards, this is not from the drive going to sleep and waking up(also, this is my boot drive). The noises were loud enough that I could hear about 7 feet away. I sent that hard drive back and got another of the same model. Now, after 3 weeks of use the clicking noises are begining. It was silent the first 3 weeks. I know it will get worse because that is how my other seagate hd got. what's the chances of this happening twice in a row? This drive(and the one before it) was used as my boot drive and I only use my system for music, internet surfing, and movies so there is no abuse. Is this a known issue of these drive models? Could it have been shipping both times(bubble wrap was used)? Or has Seagate quality hit the floor?