I would greatly appreciate some help. I have a 20GB file that I am trying to move to a 120GB External Hard drive that has 82.4GB free space. But, when I try to drag and drop in Windows Explorer(XP) or to copy and paste an error message comes up that says: "Cannot copy xxxxx. There is not enough free disk space. Delete one or more files to free disk space, and then try again." There should be enough free disk space. So, I don't understand. The file can be moved within the drive to other folders without any problem. Also, other files can be moved onto and off of the external hard drive so it does not seem to be a problem with that.