Method of reconstructing digital data that is lost or destroyed using redundant data embedded in the good information left uncorrupted with the result being an identical copy of the original information. Error correction is used to ensure that a slightly defective digital storage medium is not made useless and its data lost. For instance, a CD may be scratched but error correction circuitry in the CD player will be able to reconstruct the lost data ruined by the scratch and still ply the disc like normal. f course, error correction can only operate if the damage is not too severe. A large gouge in a CD may render it useless. Since error correction relies on redundant data from unharmed areas of a digital storage device (such as a CD or DVD), if the storage device is severely marred the redundant data will also be lost resulting in errors that cannot be corrected.