Editing Compact disc (section)

=== Recordable CD ===
[[File:Maxell CD-R 700MB 40x 20040321.jpg|thumb|700&nbsp;[[MiB]] CD-R next to a [[mechanical pencil]] for scale]]
{{Main|CD-R}}
Recordable Compact Discs, [[CD-R]]s, are injection-molded with a blank data spiral. A photosensitive dye is then applied, after which the discs are metalized and lacquer-coated. The write laser of the [[CD recorder]] changes the color of the dye to allow the read laser of a standard [[CD player]] to see the data, just as it would with a standard stamped disc. The resulting discs can be read by most CD-ROM drives and played in most audio CD players. CD-Rs follow the ''Orange Book'' standard.

CD-R recordings are designed to be permanent. Over time, the dye's physical characteristics may change causing read errors and data loss until the reading device cannot recover with error correction methods. Errors can be predicted using [[Optical disc#Surface error scanning|surface error scanning]]. The design life is from 20 to 100 years, depending on the quality of the discs, the quality of the writing drive, and storage conditions.<ref>{{cite web|title=Cost Per Gigabyte of Popular Data Storage - Infographic|url=https://www.blankmediaprinting.com/blog-article/cost-gigabyte-popular-data-storage-types-infographic/|work=Blank Media Printing|access-date=1 January 2016|archive-url=https://web.archive.org/web/20160417144636/https://www.blankmediaprinting.com/blog-article/cost-gigabyte-popular-data-storage-types-infographic|archive-date=17 April 2016|url-status=live}}</ref> Testing has demonstrated such degradation of some discs in as little as 18 months under normal storage conditions.<ref name="AutoMR-14"/><ref name="AutoMR-15"/> This failure is known as [[disc rot]], for which there are several, mostly environmental, reasons.<ref>{{Cite web|url=https://www.clir.org/pubs/reports/pub121/sec5.html|title=5. Conditions That Affect CDs and DVDs – Council on Library and Information Resources|website=clir.org|access-date=2016-07-05|url-status=live|archive-url=https://web.archive.org/web/20160915012213/https://www.clir.org/pubs/reports/pub121/sec5.html|archive-date=15 September 2016}}</ref>

The recordable audio CD is designed to be used in a consumer audio CD recorder. These consumer audio CD recorders use SCMS ([[Serial Copy Management System]]), an early form of [[digital rights management]] (DRM), to conform to the AHRA ([[Audio Home Recording Act]]). The Recordable Audio CD is typically somewhat more expensive than CD-R due to lower production volume and a 3 percent [[Audio Home Recording Act#AHRA royalties|AHRA royalty]] used to compensate the music industry for the making of a copy.<ref name="McFadden"/>

High-capacity recordable CD is a higher-density recording format that can hold 20% more data than conventional discs.<ref>{{cite web |url=http://www.osta.org/technology/cdqa7.htm |title=Understanding CD-R & CD-RW |publisher=Osta.org |access-date=25 July 2013 |url-status=live |archive-url=https://web.archive.org/web/20130801123221/http://www.osta.org/technology/cdqa7.htm |archive-date=1 August 2013 }}</ref> The higher capacity is incompatible with some recorders and recording software.<ref name="cdrfaq">{{cite web
 |url         = http://www.cdrfaq.org/faq03.html
 |title       = CD-Recordable FAQ – Section 3
 |date        = 9 January 2010
 |access-date = 25 November 2013
 |quote       = Small quantities of 90-minute and 99-minute blanks have appeared [...] Indications are that many recorders and some software don't work with the longer discs.
 |url-status     = live
 |archive-url  = https://web.archive.org/web/20131118040105/http://www.cdrfaq.org/faq03.html
 |archive-date = 18 November 2013
}}</ref>