I bought a Nikon D3100 kit about a year ago, and an 8gb SanDisk SD card to go with it. Suddenly about a week ago I started getting the error "This memory card cannot be used. Card may be damaged". I can read and copy the images using the SD card reader on my computers, but I can't write to it, format it or delete any images, neither on the computers nor with the camera. I've checked that the lock isn't on, so that's no the problem (I even tried putting some extra tape over it, but it didn't help). Apparently it's somehow set to "read-only", but if I try to uncheck it on my computer, it simply re-sets itself.
Does anyone have any idea if this is fixable? Is there any way I could have set it to "read-only" on my camera? It's extra annoying as I can't afford a new card right now.
Does anyone have any idea if this is fixable? Is there any way I could have set it to "read-only" on my camera? It's extra annoying as I can't afford a new card right now.