Optimized power control: Difference between revisions

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'''Optimized Power Control''', also known as '''Optimum Power Calibration''', abbreviated '''OPC''', is a function of a [[compactoptical disc|CD]] or [[DVD]] [[CD recorder|writer]]s.

It checks the proper writing power and reflection of the media in use, calculating the optimum [[laser]] power and adjusting it for writing the particular session. More sophisticated is '''Active OPC''' or '''Running OPC'''. Active OPC monitors writing power and reflection of the media in use, calculating the optimum laser power and adjusting it in [[real-time]], which, in theory, should result in a better quality [[CD/DVD authoring|burn]].

== See also ==

* [[Optical disc recording technologies]]

* [[Write strategy]]

== External links ==

* [{{webarchive |url=https://web.archive.org/web/20101106131008/http://www.dvdburning.biz/terms/optimum-power-calibration-opc.htm |date=6 November 2010 |title=Optimum Power Calibration (OPC)] }}

* [{{webarchive |url=https://web.archive.org/web/20090415172800/http://www.dvd-recordable.org/Reviews+index-req-showcontent-id-134.phtml |date=15 April 2009 |title=What are CAV, CLV, PCAV, ZCLV & OPC?] }}

* [http://www.osta.org/specs/pdf/opc.pdf Running Optimum Power Control: Data Integrity in CD-Recording]

* [http://www.nec.co.uk/index.aspx?id=191&pressid=597 NEC ND-2500A/ND-5100 press release]

:Both drives take advantage of ... an improved version of NEC's "Active Optimized Power Control" (Active OPC). ... Active OPC dynamically monitors writing power and reflection of the media in use, calculating the optimum laser power and adjusting it in real-time. ...

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{{Compu-hardware-stub}}

[[Category:Optoelectronics]]

[[Category:Optical disc authoring]]

[[Category:Optical computer storage]]