I ordered this hard disk 5 moths back, from inception the rate of transfer was sub- standard , but managed to use it as I have paid for it. Later it started to delay the detection in windows. After some time it stopped working, I complained to service centre regarding such unanticipated behaviour. But sony service center, as usual were very RUDE and UNHELPFUl. They alway try to distress u in every way by claiming that it was your fault.There is no option for data recovery as well.BEWARE before buying this item.Its better to say that at sony service center, Your dignity will be mocked, abused, compromised, toyed with, but its better to make a good decision than to repent it later .