The CDs could be played in stereo systems, had a diameter of mm making it portable and smaller than the vinyl record , and could hold an immense amount of data, much more than the vinyl record or the cassette did. Soon after, Sony and Philips parted ways and started working separately, trying to produce their own CD-drive equipment.
The first commercial CD drive was released a month earlier by Sony on 1st of October , making it a notable event in the history of CD development. It did not reach the shores of America until the early part of Sony beat Philips once again for a second time when it released the first portable CD player in the year The time was ripe for commercial CDs to make a foray into the market. In spite of the concerns of the major music labels, the popularity of CDs soared and over a thousand different singles and albums were released in the first year alone.
The second book of standards was once again a collaborative effort of the two companies in spite of the fact that both of them were still on the race separately. The electronics of the CD could be tweaked in a manner such that one would be able to store data on the disc that could be read off by a computer. This was a landmark development in the history of CDs that had far-reaching effects.
CDs would prove to be an ideal replacement for the existing floppy discs and would store a large amount of data in spite of their size. They would have a greater speed that positively impacted data access times. CDs are made from an original "master" disc. The master is "burned" with a laser beam that etches bumps called pits into its surface. Once each disc is pressed, it's coated with a thin aluminum layer so it will reflect laser light , covered with protective polycarbonate and lacquer, and the label is printed on top.
The cases are made of soft, clear or colored, polypropylene plastic with a transparent polyethylene outer jacket, usually with a printed paper sleeve behind it.
A variety of colors are produced, including black, white, red and clear. The bulk of slimline cases are made with translucent or transparent polystyrene, and are available in multiple colors. A stronger alternative is made from semi-opaque, semi-flexible polypropylene which is strong enough to protect the disc , but flexible enough not to break easily. Roumen Dieckhoff Professional.
What should I do with old CDs? Use an old CD as the template for a perfect circle. Cover old CDs with felt and use them as coasters. Use old CDs to catch candle drips. Make artistic bowls from old CDs.
Use old CDs as sidewalk or driveway reflectors. Use an old CD as the basis for a kids' craft. Use old CDs as holiday ornaments. Enya Gascue Professional. What holds a CD in place?
Tray This is the usually removable part of the case that holds the disc in place. Nedyalko Telletxea Professional. What is the paper inside a CD case called? PolyGram was handed the task of creating the case at the time this was a record label owned by Philips. The design was finalized in by Peter Doodson, a designer working form PolyGram in Holland, and so came into being the jewel case. The three piece plastic case had a rectangular back, a disc shaped tray and a transparent cover to hold artwork.
The next step was to transform the idea into a form that was suitable for mass production, which meant that tools were for production by means of injection molding. One problem arising at that time was how the tool for the tray, with its center clamping of the disc, had to be designed, because injection molding technology still had many limitations at that time. The process was tested, modified and tested again and again until it worked.
The moment of truth arrived when the first samples were taken out of the injection-molding machine. But the product proved to be virtually perfect, which gave rise to the name 'Jewel Case'! However not everyone was so positive about the new and untried Jewel Case. Tests by consumer panels revealed that not everyone knew immediately how to open the case.
And the more firmly it was held, the more difficult it became to open it. The only solution was to teach consumers how to do it. Which helped, because after a few months the complaints disappeared.
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