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A standard DVD case is a single-piece plastic case with two creases, which folds around and snaps closed. It measures 135 mm × 190 mm × 14 mm (5.31 in × 7.48 in × 0.55 in). It is wrapped on the outside by a thin piece of transparent plastic that can hold a paper label. The label measures 284 mm × 184 mm (11.2 in × 7.2 in).
Outside of a DVD snap case. (This would normally feature artwork and text which has been digitally edited out of this photograph.) The inside of the same snap case, with artwork removed. A snap case is a type of optical disc packaging, used for DVDs and CDs, also known as a paperback case, Ivy Hill Snapper, [1] "snapper case", or FLP case.
Standard black keep case. A keep case or poly-box is a type of packaging, most commonly used with DVDs and Blu-ray videos (and sometimes CDs).. Besides DVD-Video films, keep cases are very common with most disc-based video games since the PlayStation 2, and they are also found on many PC titles and MP3-CD audiobooks (all use discs that are the same basic dimensions as a DVD).
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.
Whether or not you actually watch your DVDs anymore, you likely have a bunch lying around -- and depending on what they are, they could fetch you some extra cash if you're interested in selling them.
For rewritable CD-RW, DVD-RW, DVD+RW, DVD-RAM, or BD-RE media, the laser is used to melt a crystalline metal alloy in the recording layer of the disc. Depending on the amount of power applied, the substance may be allowed to melt back (change the phase back) into crystalline form or left in an amorphous form, enabling marks of varying ...
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As PC games migrated to CDs in jewel cases, the large format box remained, though to reduce printing costs, manuals came on the CD as well as with the CD (inside the front cover), as did many of the copy-protection techniques in the form of SafeDisc and SecuROM. Despite the CD jewel case format having been around since the invention of the ...