Hi Just got my Maxtor OneTouch4 Mini. To my amazement when I ran the "test the drive" feature in Maxtor manager it gave me a red "Defective" result suggesting that I back up and that the drive needed service. This unit is brand new out of the box from Amazon.com It seems to accept files ok when I do a transfer in Windows Explorer. My laptops HD is NTFC format as is the mini's HD. Any suggestions on anything I should try before trying to return it to Amazon???? Thanks Art