Case:
Customers have preserved important photos in the CD disc. The CD disc was scratched. Those who ran several data to do data indicated that they could not restore the CD -ROM medium.
Solution:
After receiving the CD -ROM observation, we found that the plate was seriously injured, but the place where the scratches were more concentrated, and the scratch area did not account for 10%of the total area. A large number of round spots, and there is a phenomenon of falling off the back of the plate. The CD-R CD uses a special material coating. When it is different from the hard disk, the CD-R does not use magnetic particles to record the data. Causes the special surface with flat and pits. There are flat pits to record binary data 0 and 1. 1. For the above principles, we will solve the following points: 1. Clean up the plate pollution 2. The may cause the optical drive on the back to fall off. When the laser is read, the light leaks should be added with “cover”” (even if there is no original