I purchased a usb card reader to read mini sd card from ebay. Today i tried reading it in all the usb ports of my laptop but it was not showing me the contents of the card instead a cd drive icon comes, when clicked on it , shows please insert a disk. I have attached the pic along with this post. In the pic, the left one is my laptops original dvd drive whereas the right is the created by the usb card reader which does not opens. How to make the usb card reader work?