SD card not being able to get formatted and deleted files come back.

[Deva Surya]

I have a Samsung 16 GB SD card and it is not able to get formatted. When I delete files in the SD card and remount it, the files come back. I can't even add more files in it. The files disappear. But, the files in the card is accessible. I have tried to format it in my PC. I doesn't work. I have even tried third party applications. It doesn't work. It shows that format cannot be completed. I have tried command prompt and stuff. But it won't work. Please suggest a solution.

 

[CountMike]

Those are most common signs that it's gone south,

 

[Deva Surya]

Those are most common signs that it's gone south,