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A CD is made from 1.2-millimetre (0.047 in) thick, polycarbonate plastic, and weighs 14–33 grams. [71] From the center outward, components are: the center spindle hole (15 mm), the first-transition area (clamping ring), the clamping area (stacking ring), the second-transition area (mirror band), the program (data) area, and the rim.
During glass mastering, glass is used as a substrate to hold the CD master image while it is created and processed; hence the name. Glass substrates, noticeably larger than a CD, are round plates of glass approximately 240 mm in diameter and 6 mm thick. [3] They often also have a small, steel hub on one side to facilitate handling. The ...
The CD jewel case is designed to carry a booklet, as well as to have panel inserts. These may be used to display album artwork, lyrics, photos, thank-yous, messages, biography, etc. [5] Because the CD jewel case is the standard, most commonly used CD case, it is much cheaper. The price of the CD jewel case usually ranges from $0.75 to $0.95.
Longbox packaging was phased out officially as of April 1, 1993, due to the controversy. At the same time, major retail stores were no longer selling vinyl records and had converted their displays to accommodate shrink-wrapped jewel cases, meeting the rising consumer demand for CDs while eliminating the need for longboxes. A further inducement ...
The VinylDisc is a combination of a digital layer, either in CD or DVD format, and an analog layer, which is a vinyl record, developed by the German company Optimal Media Production. It consists of a silver layer containing CD or DVD and a black polyvinyl chloride layer (able to hold 3.5 minutes of audio on 33⅓ rpm) which can be played on a ...
Mini CD-R, Mini CD-RW: As of 2020, many manufacturers offer 80 mm CD-R and CD-RW discs for sale in retail electronics and office supply stores. [citation needed] Most of the blank discs available in retail hold either 185 MB (21 minutes) or 210 MB (24 minutes) of data. The mini discs, despite having less weight and plastic, are generally more ...
Most gold and platinum records are actually vinyl records which have been vacuum metallized and tinted, while trimmed and plated metal "masters", "mothers", or "stampers" (metal parts used for pressing records out of vinyl) were initially used. The music in the grooves on the record may not match the actual recording being awarded.
The Sri Lankan partners acquired the South Korean partner's stake partners in 2006. Sri Lankan conglomerate Hayleys acquired Alumex in 2010 and was listed on the Colombo Stock Exchange after an initial public offering in 2014. Alumex is the leading aluminium manufacturer in Sri Lanka, with a market share of 46%.