I'm trying to back up two drives to a 2TB WinBook. The two drives hold a total of about 450GB of data, (100+350). The capacity of the 2TB WinBook I saw somewhere is about 1.8TB, and I'm doing this with no compression, since I thought there was more than enough room. I got 2/3 of the way through the second drive and got a message from Macrium Reflect that I'd run out of space. There is nothing else on the WinBook except for it's own files. What's going on here? Why would the drive be running out of space? Thanks.