Repair and Reclamation of Data From Optical Discs
If scratches on the laser-reading side of an optical disc prevent it from being read, it may be possible to recover all or most of the content once, and transfer it to another storage medium. There are software packages that analyse data on a damaged storage medium and can recover some or all otherwise inaccessible information. Commercial companies offer data recovery services. Also, the disc itself can be repaired. There are various machines that will repair discs by polishing, buffing or grinding the playable surface. Usually the disc will appear like new and most importantly the data can once again be read by the laser. Some game shops, pawnbrokers and supermarkets provide a disc repair service. However, since this is an ablative process in which a layer of the substrate is removed, it is only safe to do a few times before risking the loss of the whole disc.
Read more about this topic: Optical Media Preservation
Famous quotes containing the words repair, data and/or optical:
“It is not only a question of who is responsible for very young children. There is no longer anyone home to care for adolescents and the elderly. There is no one around to take in the car for repair or to let the plumber in. Working families are faced with daily dilemmas: Who will take care of a sick child? Who will go to the big soccer game? Who will attend the teacher conference?”
—Fran Sussner Rodgers (20th century)
“This city is neither a jungle nor the moon.... In long shot: a cosmic smudge, a conglomerate of bleeding energies. Close up, it is a fairly legible printed circuit, a transistorized labyrinth of beastly tracks, a data bank for asthmatic voice-prints.”
—Susan Sontag (b. 1933)
“It is said that a carpenter building a summer hotel here ... declared that one very clear day he picked out a ship coming into Portland Harbor and could distinctly see that its cargo was West Indian rum. A county historian avers that it was probably an optical delusion, the result of looking so often through a glass in common use in those days.”
—For the State of New Hampshire, U.S. public relief program (1935-1943)