You have work to do. So, you open your PC and suddenly you notice that one of your partition is missing or can’t be accessed. That is still OK. How about the missing or damage partition is the partition that contains your Operating System (such as XP, Vista, Linux)? And sometimes computer can’t be formatted due to partition table issues. Would not you throwing your hard disk because you think that the hard disk already broken.
That is what some people always do. They never know that the hard disk maybe not broken, but only has damage partition table.