If, like me, you are still happily in the Stone Age with Windows XP, your computer will not be able to use this card unless you install Windows Update KB955704.  This update is available from Microsoft.com.Thanks to dOGG94, who pointed this out in Customer Questions and Answers on August 6, 2013.  I installed this update and am now able to load GoPro's pictures onto my computer. dOGG94's answer to the customer question provides the link to the update.  Amazon did not allow me to post the link here.  I don't know why.  Just go to the Microsoft.com updates site and look for KB955704.  Or go to the indicated question for the link.The product description should have provided this information.