Optical-Media preservation
Optical media (eg, Blu-Ray, CDs & DVDs) are very easily damaged. If treated carelessly, they may eventually become unreadable. With optical-media drives becoming faster and more disc sensitive, this is becoming an increasing problem.
Optical media are made from two thin layers of polycarbonate, sandwiching the data-encoded reflective surface - which is easily scratched.
Normally an optical-media drive can cope with small surface-scratches without difficulty. However, if these scratches are too long, too deep or too numerous, the optical-media drive may have problems reading the data. Similar issues will result from dirt and grease accumulating on the playing surface.
Protecting your disks:
- Avoid getting dirt on the disc by always holding it by the edges - and never touch the playing surface;
- should the disc become dirty or scratched, clean the surface with a lens cloth, using a small radial action;
- should the disc become very dirty, use a proprietary optical-media cleaner or a lens cloth with an optical-media cleaning fluid;
- should the disc become badly scratched, there are optical-media cleaners available that will repair some of this damage;
- optical media should also be kept away from extreme heat, as this can warp the disc or damage the surface.
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