Here are the things I am using: The Hi-Speed USB 2.0 15-in-1 Media Reader & Writer (exactly what the picture looks like) MicroSD with this EXACT card (except mine is an 8GB) AND adapter I've installed the software from the small disk that came in the media reader package. When I plug the media read into my computer, the green light appears, showing it's inserted and connected to a computer. I've used it previously with a normal 2GB SD card and it worked every time. Whenever I insert the adapter and microSD, my computer doesn't even recognize it has been inserted. I have also tried using a PC, and the card is still never recognized, even though the owner of that PC uses a microSD and adapter with that computer. What is going on? Is it the card? The adapter? The media reader?