I rated it 1* only because there is no 0*.I have had 5 of these IBM drives, and I have had all 5 crash. YES 5. I have been using computers for 15 years and have never crashed a drive until these pieces of garbage. If you are using a "DEATHSTAR" right now, it will crash... Maybe not today, or maybe not tomorrow... but eventually it will crash. There are class action lawsuits all over the place on these duds. Please see...If you are thinking of getting one, DON'T. If you have one, GET RID OF IT. DO IT NOW!Mark