ultra cfcard issue

I own a ultra cf card for my canon 7d camera. The very first day I used it it failed in camera, I have used recovery software to recover most of the pictures. Now when I put the card in my camera it will not recognize the card. I have tried reformatting in camera and on my computer and both give an error message that they can not format the card. Is there any way of fixing this error?

sounds like a bad card. since you just purchased it i would return it to the place of purchase. if they will not replace it for you (most stores have a 30 day return policy) contact sandisk support 866-sandisk for warranty replacement.