CD card reading issue

My Samsung sch-1500 is randomly saying my sd card is damaged or correupted. I have replaced the card and that works for awhile then goes back to saying the card is damaged. Because of this I cant use my camera or download attachments in emails. I have read this is a common problem but cant find what needs to be done to fix the problem. I am not worried about the card itself. It seems when I do a search all I can find is advice on how to repair the card. I want to be able to use the camera and download attachments.

Thanks,