Photos are really something that we often accidentally delete or we get the digital camera card corrupted to have lost all the photographs on it. In such a case of corrupt card, we are not able to read, write or make some changes on to the card. All we can do is to format the card and loose all the photographs on it. Good data recovery software can help you to recover these photographs as the computer treats these cards as removable disk drives. But, I would rather recommend to have specialized photo recovery utilities (recover external hard drive) as they are much cheaper and not loaded with un-necessary stuff of identification and filtration.