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What (who) is Compact Disc Rewritable - definition

Gold CD; Gold Compact Disc

Compact Disc Rewritable

<storage> (CD-RW) A rewritable version of CD-ROM. A CD-RW drive can write about 650 megabytes of data to CD-RW media an unlimited number of times. Most CD-RW drives can also write once to CD-R media. CD-RW media cannot be read by CD-ROM drives built prior to 1997 due to the reduced reflectivity (15% compared to 70%) of CD-RW media. CD-RW drives and media are currently (1999) more expensive than CD-R drives and media. CD-R is sometimes considered a better technology for archival purposes as the data cannot be accidentally modified or tampered with, and encourages better archival practices. Standard prerecorded CDs have their information permanently stamped into an aluminium reflecting layer. CD-WR discs have a phase-change recording layer and an additional silver (aluminium) reflecting layer. A laser beam can melt crystals in the recording layer into a non-crystalline amorphous phase or anneal them slowly at a lower temperature back to the crystalline state. The different reflectance of the areas make them appear as the 'pits' and 'lands' of a standard CD. {Phillips: New Technologies (http://www-us.sv.philips.com/newtech/cdrewritable.html)}. See also CD-R and DVD-RAM. (1999-08-01)

CD

DIGITAL OPTICAL DISC DATA STORAGE FORMAT

Compact disk; CDs; C.D; CD; Music compact disc; Compact Disk; CD recording; Compact discs; Audio CDs; Cd; Compact audio disc; CD-quality; CD quality; Compact Laser Disc; Compact Laser Disk; Compact disks; Compact Discs; MIDI disc; Un CD; CompactDisk; Compact Disks; C.d.; C D; Compact Disc; Digital record

(CDs)

Frequency: The word is one of the 3000 most common words in English.

CDs are small plastic discs on which sound, especially music, is recorded. CDs can also be used to store information which can be read by a computer. CD is an abbreviation for 'compact disc'.

The Beatles' Red and Blue compilations are issued on CD for the first time next month.

N-COUNT

CD

DIGITAL OPTICAL DISC DATA STORAGE FORMAT

Compact disk; CDs; C.D; CD; Music compact disc; Compact Disk; CD recording; Compact discs; Audio CDs; Cd; Compact audio disc; CD-quality; CD quality; Compact Laser Disc; Compact Laser Disk; Compact disks; Compact Discs; MIDI disc; Un CD; CompactDisk; Compact Disks; C.d.; C D; Compact Disc; Digital record

Compact Disc

Wikipedia

Gold compact disc

A gold compact disc is one in which gold is used in place of the super pure aluminium commonly used as the reflective coating on ordinary CDs or silver on ordinary CD-Rs.

Gold CDs can be played in any CD player. Blank gold CD-Rs are also available. They can be recorded in any CD recorder and played in any CD player.

The advantage of the gold reflection layer is its increased resistance to corrosion, in contrast to the ordinary aluminium layer found on normal compact discs. Due to concerns over the incidence of CD rot on early CDs (mainly manufactured by PDO UK), gold CDs were thus seen as a potential solution.

In 2014, Audio Fidelity, an American publisher of audiophile CDs, announced that it was abandoning the gold format and moving to the hybrid Super Audio CD (SACD) format for future releases.

Since 2016, the Australian division of Sony Music have been reissuing back catalogue CDs as budget-priced (under $10) issues with gold CDs under the "Gold Series" branding.

https://en.wikipedia.org/wiki/Gold compact disc