Hi, I had a SD reader with an SD adapter with a MicroSD card. Using a test with my Wii (copying a save file from the Wii, to the SD adaptor/MicroSD combination), I figured out that it can't be my adapter or MicroSD card. I have opened up the reader and found nothing that looks too suspicious. The only thing I noticed is that the part that plugs into the computer is a little bit indented. I made sure that slide on my adapter is unlocked and I've tried any other tips I've found so far. Nothing is working, not even the SD card formatter 2.0. I am getting very frustrated.