I have been using a 1 Gb Scan disk jump drive for about a year now and had no problem with it. Today, I plug it into my computer and it shows that 359Mb is used even though there is nothing on it. I made sure hidden files are shown on my computer, but can not find anything on it. I plugged it into my work laptop and it shows the same thing. I do not want to format it because I do not know how that would affect the jump drive. Any help is appreciated. Thanks in advance.