A further point about cards…

From my own experience…

I once had a CF card which was apparently corrupt – couldnt get anything using imagerescue (Lexmarks own supplied software) and couldnt even subsequently format the card without it aborting with errors.

I thought all was lost until i had a notion and used a puffer brush to cleam out the edge connectors on the card.

Result? – card read straight away and i was able to format perfectly first time.