Im currently transferring 387GB of data from Documents to WD My studio 2 via FW800. I did the same back up yesterday using a WD USB3 2TB Essentials and it did it in within 4 hours (USB 2). Why is it taking so long? Is this a sign of a dead hdd? I made a back up of my documents and want a second as im doing a fresh install.... EDIT! it now says 9 days!