Any files larger than about 700,000 kb won't transfer and I get the error message "A device attached to the system is not functioning." Is it possible to do the usual way of dragging and dropping files or do I have to do it some other way? I know about changing to "Keep Originals" in the Photos settings but that changes the files to a different format that I would have to convert, I think. I'd like to transfer in a compatible format for PC. Thanks for any information.