I know there have been issues with this Seagate drive but I bought it nevertheless and followed the Forum recommendations for reformatting to the letter (2 partitions). Whilst I have been able to back up my wife's Macbook pro with no problem, in backing up my own it consistently freezes at 16.97Gb into a 159GB process such that the time to completion in the panel grows from 3 hours to 17 hours! I have gone through the Disk verification and repair procedures but it freezes at exactly the same point. Something seems to be amiss in my Mac Book but what? Any help welcomed.