USB mini Flash Drive Thumb Drive. wont copy files

Originally Posted by ryancol

I have a couple usb 2.0 flash drives. I use them on either windows 2000 or windows XP. When I copy (drag and drop) a file folder to them such as a file folder with like 10 or 20 pictures in it the file folder will show that it made it to the flash drive. I can open it on the flash drive and the pics are in there. BUT if I properly eject the drive and plug it back in right away or plug it back in later, the file folder is there but it is empty. No pictures will be there. The only luck I have had is to create a file folder on the drive and then drag pictures to it one picture at a time. Then they will stay there forever.
Am I doing something wrong or what? Thanks.