My 8 month old Eos 70D has decided "Card Cannot Be Accessed". The only suggestion I can find for a solution is to format the card in the camera, but I cannot do this because of the error. I suppose it will be a warranty repair but it is concerning after 8 months that this problem would occur. Has anyone experienced this behaviour and how did you resolve it? I have tried different cards with the same result, pny and sandisk.
