Hi...After lots of help on another thread I've just made an image of my C: drive and it has checked out OK. And of course I have got another bunch of questions. Because I have to get some more dvd disks I didn't burn the image to disks but sent it to the hard drive. Also sent it sized "autonatic" and it arrived on the drive as a large single file. I'll probably delete that one and try again,eiher to disks or to the drive but split to disk sized blocks. Only one question tonight. In Win Explorer my C: drive shows 16.2 GB used...89GB free... and 105 GB total. And the image file on the hard drive shows 7,367,578 KB in Windows Explorer. All in round figures. To have an idea of how many dvds I'm going to need, does Acronis record just data or all the blank space as well. That's getting complicated..it is an image of the C: drive now sitting on the C:drive. Roughly how many disks will I need? I'd better get some sleep. Cheers...P.