I bought this hard drive, telling me that I could make big back-up top, and empty my poor computer in passing ... Although evil has taken me! I received the disc in time, well packaged, no complaints. He held a week and he started doing the "click of death" as taught me a forum ... I did not lose important data, but still! I do not recommend this machine to anyone, obviously I am not an isolated case, and one disk would have this problem ... 3