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The label is printed on the lacquer layer, usually by screen printing or offset printing. Pits and lands of a compact disc under a microscope. CD data is represented as tiny indentations known as pits, encoded in a spiral track molded into the top of the polycarbonate layer.
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.
Dimensions indicated are track pitch (p), pit width (w) and minimum length (l), and laser spot size (⌀) and wavelength (λ). For comparison with analogue media, the pitch of the spiral of a 240-groove-per-inch long-playing record and a Laserdisc are 106 μm (66 times the CD track pitch) and 4.6 μm (2.9 times), respectively.
Several proposals for new types of packaging that served the display-size of the longbox and theft-prevention goals were developed. [ citation needed ] A common replacement consisted of locking plastic frames (security keepers) containing anti-theft detection strips, designed to roughly meet the same dimensions as the longbox to fit into the ...
Among major labels, it was largely replaced by putting less music on a regular full-size CD. The full-size discs are a more standard manufacturing process and so ended up being cheaper to press. The CD single format continued in larger production until the early 2000s with for Japanese releases, but continued to the present day in much smaller ...
Bad or improperly made labels, or labels applied off-center, unbalance the CD and can cause it to vibrate when it spins, which causes read errors and even risks damaging the drive. [23] Example of burned CD-R labeled using a permanent marker. A professional alternative to CD labels is pre-printed CDs using a 5-color silkscreen or offset press.