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Disc rot is the tendency of CD, DVD, or other optical discs to become unreadable because of chemical deterioration. The causes include oxidation of the reflective layer, reactions with contaminants, ultra-violet light damage, and de-bonding of the adhesive used to adhere the layers of the disc together.
Pens or markers with hard tips, or with solvents that can affect the protective layers, can scratch or damage the data layer; water-based felt-tip pens are safest. [2] The data layer of a double-sided DVD is in the middle of the disc, surrounded by the substrate on both sides so scratches to either side are equivalent.
SVCD was intended as a successor to VCD and an alternative to DVD-Video and falls somewhere between both in terms of technical capability and picture quality. SVCD has two-thirds the resolution of DVD, and over 2.7 times the resolution of VCD. One CD-R disc can hold up to 60 minutes of standard-quality SVCD-format video.
Learn how to remove scratches from glass windows, tables, and vases using vinegar and toothpaste. This guide includes advice and tips from glass repair experts.
Brasso has also been used to polish out scratches in plastics: It has been used to polish CDs, DVDs, screens, and pools to repair scratches. It is a mild solvent and an extremely fine abrasive, so when applied to the reflective surface of the disc and rubbed radially (in straight lines between the edge and centre), it can smooth scratches and reduce their effect.
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Discs have also been scratched by stationary consoles during normal use. [37] One side of the disc can also be scratched by the disc tray if it malfunctions by closing with the disc in an odd position. [citation needed] Also, technical engineers already knew about the problem before release confirm this with Microsoft with a list of solutions. [38]
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