I just did this same upgrade of the 500 gig seagate momentus 7200 on my macbook pro and was plagued with the -10010. So yesterday I spent all day looking through forums, resetting p ram, defragging ect. What ended up solving this problem for me was splitting up my drive and dropping the projects onto their own partition, I understand all the reasons why it shouldn't do anything but it did. Hope this helps.