Data recovery of hard drives is an important part of any business and home anymore. The amount and the value of data on a computer is astronomical, and data recovery of hard drives is one of the major concerns of most businesses. It is estimated that $2-$3 billion each year is lost due to data that couldn't be recovered

According to Murphy's Law of Data Loss, “The probabilities of a hard-disk crash increase with the number of days since the drive was last backed up.” No hard disk drive is ever completely safe from crashing, and losing all the important data on it. A disk drive can be damaged due to a number of causes such as virus attack, voltage glitches, software malfunction, hard disk format, accidental file/directory deletion, human error or even sabotage. Such events cause corruption or damage to the disk drive, and make the data completely inaccessible to the user.