What's the Flash drive capacity, have you enough space for ALL the files you are copying?
Another point, are you downloading jpegs or are you editing them with a software programme like Adobe Photoshop? If the latter, then you should be able to save each one directly to your Flash Drive.
When I try to copy jpeg files to my flash drive or to a CD-RW, after a few files have copied, I get an error message that says "Error: Cannot copy file". Here the process stops. I check and the destination has plenty of storage space and the file that it stops on does not have a Read-only attribute. What's going on?
No matter what I try, it will not copy any more files.
(HP P4 2.0GHZ Notebook running WinXP Home)