If you have any problems with a card do not try to solve it by trying "this and that".
Ask someone who is a pro in this business.
Download a copy of the free software FTK Imager (Lite).http://www.accessdata.com/support/product-downloads
And make an forensic image of the physical data on your card.
Take a look at this tutorial http://computer-forensics.sans.org/blog/2009/06/18/forensics-101-acquiring-an-image-with-ftk-imager/
But I would suggest to use another image format (e01).
This is a 100% forensic bit by bit copy of the data on your card.
Do not use your card for anything else before completing this forensic image!
Upload this forensic image to your e.g. dropbox and send me a message.
Maybe I can help you out.
Sorry, for this posting - it seems that everything is fine.
Maybe I can help someone else someday.