Thanks guy's, it wasnt actually a formatting problem, it was a write protection, i have uploaded 1 application that format's perfectly any usb or external memory unit if in future some1 has this problem aswell, i have also uploaded a Disable write protection registry, aswell as an enable write protection, its very easy to use, and works very well, especially if you keep getting that annoying error message "THIS DISK IS WRITE PROTECTED" this app's over ride that problem. But thanks for the assistance!