So I thought my SD card had a problem but I did just realize that my USB "ALL IN 1 MINI CARD READER HYUNDAI HY-1029" can't read or write at any SD ... When I plug it in my USB port I hear the sound that a device has been plugged. In "my computer" screen I can see all the different devices for each card (such as H: for SD cards, I: for MS etc) but when I plug my SD and try to double click, right click, nothing happens... Sometimes a window pops up saying: " The request could not be performed because of an I/O device error... What the heck is happening?