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The process of playing an audio CD, touted as a digital audio storage medium, starts with the plastic polycarbonate compact disc, a medium that contains the digitally encoded data. The disc is placed in a tray that either opens up (as with portable CD players) or slides out (the norm with in-home CD players, computer disc drives and game consoles).
The track on the CD begins at the inside and spirals outward so a disc played from beginning to end slows its rotation rate during playback. Comparison of various optical storage media. The program area is 86.05 cm 2 and the length of the recordable spiral is 86.05 cm 2 / 1.6 μm = 5.38 km.
Two different ways of marking cut-out records on LP jackets. When LPs were the primary medium for the commercial distribution of sound recordings, manufacturers would cut the corner, punch a hole, or add a notch to the spine of the jacket of unsold records returned from retailers; these "cut-outs" might then be re-sold to record retailers or other sales outlets for sale at a discounted price.
A CD can be used to store audio, video, and data in various standardized formats defined in the Rainbow Books. CDs are usually manufactured in a class 100 (ISO 5) or better clean room, to avoid contamination which would result in data corruption. They can be manufactured to strict manufacturing tolerances for only a few US cents per disk.
The U.S. recorded-music business continues its upward swing, posting a near-record $15 billion in revenue for 2021, driven by a surge in streaming, solid vinyl and even CD sales, and the inclusion ...
Light the End and Burn It Through: 2004 "Roken Is Dodelijk" Arab Strap: Cherubs: 1999: Cover of "Ben Kenobi Theme" by John Williams from Star Wars: Arcade Fire: Reflektor: 2013: The first of the album's two CDs contains a ten-minute medley of instrumental parts from the 7 tracks of the CD, burned in reverse Arcturus: La Masquerade Infernale ...
A snap case is a design for both CD and DVD packaging, and is made in the standard sizes for both. Each is made of a single-piece plastic tray and closure, which snaps over the right edge of the front flap. The printed flap is made of thin paperboard which wraps around the left edge and across the back of the tray, to which it is glued. It has ...
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 ...