Optical disc packaging

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Air Tight Container Stainless Steel
Dia 5 x height 4 inches Dia 5 x height 5 inches Dia 5 x height 6 inches

Air Tight Container Stainless Steel
Dia 5 x height 4 inches Dia 5 x height 5 inches Dia 5 x height 6 inches
And you can see more from 20 feet container 5 gallon container food grade containers glass beverage container 40 ft container Steel Storage Container Plastic Water Container cotton ball container used shipping containers It has been suggested that Discbox Slider, Digipack, Keep case and Snap case be merged into this article or section. (Discuss)Optical disc packaging is the packaging that accompanies CDs, DVDs, and other formats of optical media. Most packaging is rigid or semi-rigid and designed to protect the media from scratches and other types of exposure damage.Contents1 Jewel case 1.1 Origin of the name 1.2 Weaknesses 1.3 Variations 1.4 Slimline jewel case 2 External marketing packaging 3 Paper or Tyvek sleeve 4 Q Pack 5 Digipak 6 Discbox Slider 7 JakeBox 8 LP style case 9 Keep case 10 Snap case 11 Soft Case/Green Case 12 DVD box sets 13 Cake boxes and other bulk packaging 14 Unique cases 15 See also 16 References 17 External links // Jewel caseA "black side" Jewel CaseA jewel case is the original compact disc case that has been used since the compact disc was first released in 1982. It is a three-piece plastic case, measuring 142mm 125mm 10mm, which usually contains a compact disc along with the liner notes and a back card. Two opposing transparent halves are hinged together to form the casing, the back half holding a media tray that grips the disc by its hole. All three parts are made of injection-molded polystyrene.The front lid contains two, four, or six opposing tabs to keep any liner notes in place. The liner notes typically will be a 120mm 120mm booklet, or a single 242mm 120mm leaf folded in half. In addition, there is usually a back card, 150mm 118mm, underneath the media tray and visible through the clear back, often listing the track names, studio, copyright data and other information. The back card is folded into a flattened "U" shape, with the sides being visible along the ends (often referred to as the spine) of the case. The ends usually have the name of the release and the artist, and often label or catalog information printed on them, and are designed to be visible when the case is stored vertically, 'book-style'.The back media tray snaps into the back cover, and is responsible for securing the disk. In its center is a circular hub of teeth which grip the disc by its hole. This effectively suspends the disk in the middle of the container, preventing the recording surface from being scratched. Originally, the media tray was constructed of a flexible black polystyrene, but many newer trays use a more fragile transparent polystyrene. This allows the reverse of the back card, which is usually used for additional artwork, to be visible. One of the first albums to include a transparent media tray was the Phil Collins's Both Sides album, released in 1993, but the format did not became common until around 1995-1996.Jewel cases are occasionally used for DVDs as well as CDs, but generally not for those that contain major film releases. Blank Blu-ray Disc media is also most commonly sold in standard-width jewel cases.The success of the CD jewel case design stems, in part, from its common form factor. Given the restriction to a common form, manufacturers have sought to compete on cost (rather than via product variation). A form of destructive competition has followed. Although the original 1980s and 1990s CD jewel case were of a higher quality and stiffer design, most jewel cases on the market today are considerably lighter and less durable than the original design. In part, this has been to cater to automated packing machines that prefer lighter boxes. In the worst cases, the rear cover is so spongy, it may be easily bent by hand. Dissatisfaction with lower quality cases provided by recording companies has produced a market for higher quality replacement cases.Origin of the nameThe name is not derived in any way from containers for jewelery, or from the fact that the case is typically made from transparent plastic as is sometimes believed. Instead, the name originates from watchmakers' use of the term jewel to refer generally to a polished hemispherical bearing used in a mechanism (high-quality mechanical watches and clocks commonly use gemstones, typically rubies, for such bearings because of their low friction properties). A jewel case has two molded hemispherical plastic bearings, in its hinges, hence the use of the term "jewel."[citation needed]WeaknessesThe original jewel case structure has a weakness in that the case is hinged on two brittle plastic arms, which often break if the case receives shock or stress. The teeth of the hub holding the disc are also prone to failure by snapping. An opposite problem is the tabs ("half-moons") which hold the liner notes in place; sometimes, especially with larger booklets, the tabs grip the booklet too tightly, leading to tearing. Likewise, when replacing the booklet it can get snagged...(and so on)


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