My Ultra 64gb card seems to have died.

I too am extremely disappointed with my 64gb sandisk memory card that i purchased to record our dream vacation to Hawaii.

recorded hours of snorkeling and adventures only to have the card fail,now all our memory’s are just that. spent a small fortune on my gopro hero black edition and accessories for what? i tested it all out before our vacation and was working fine and then when i counted on it the most it fails…just get message on camera no sd…hook up to computer and it says i need to format disk…looking up the issue on the internet and i find a lot of people are having the same problem…with no solution…What do we do now?..lose more money trying another card…CLASS ACTION SUIT…to force solution?..Can we send disk to sandisk to recover files?

this is the disk that gopro recommends,so i went with that assuming that they had verified that was good

I am so disappointed