Hatul
Contributor
I was just going to say that if the card was not formatted in the gopro you can have all kinds of issues.
I had the opposite problem with my Canon S120 camera and a fast Trancend SD card. I had to format the card on my Windows computer or it would not see that there was a card in the card reader. I think it's better for the camera to format in the camera, but if your computer does not recognize the card try formatting it in the computer.