Editing Phonograph record (section)

===Vinyl quality===
The composition of vinyl used to press records (a blend of [[polyvinyl chloride]] and [[polyvinyl acetate]]) has varied considerably over the years. Virgin vinyl is preferred, but during the [[1970s energy crisis]], as a cost-cutting move, much of the industry began reducing the thickness and quality of vinyl used in mass-market manufacturing. Sound quality suffered, with increased ticks, pops, and other surface noises.<ref name="NS80">{{cite magazine |author=Adrian Hope |date=January 24, 1980 |title=Pressing Problems for a Record Future |magazine=New Scientist |page=229 ff}}</ref> [[RCA Records]] marketed their lightweight LP as [[Dynaflex (RCA)|Dynaflex]], which, at the time, was considered inferior by many record collectors.<ref>{{cite web | url = http://www.recordcollectorsguild.org/index.php?module=pnEncyclopedia&func=display_term&id=32&vid=0 | title = Record Collectors Guild on Dynaflex | publisher = The Record Collectors Guild | url-status = dead | archive-url = https://web.archive.org/web/20070928122252/http://www.recordcollectorsguild.org/index.php?module=pnEncyclopedia&func=display_term&id=32&vid=0 | archive-date = 28 September 2007 }}</ref>

It became commonplace to use recycled vinyl. New or "virgin" heavy/heavyweight (180–220&nbsp;g) vinyl is commonly used for modern audiophile vinyl releases in all [[genre]]s. Many collectors prefer to have heavyweight vinyl albums, which have been reported to have better sound than normal vinyl because of their higher tolerance against deformation caused by normal play.<ref>Fritz, Jose. [http://tenwatts.blogspot.com/2009/01/180-grams.html "180 grams "] {{webarchive|url=https://web.archive.org/web/20110727033814/http://tenwatts.blogspot.com/2009/01/180-grams.html?_r=1&oref=slogin |date=27 July 2011 }}, ''Arcane Radio Trivia'', 23 January 2009. Accessed 26 January 2009. "The basic measurement behind those grams is thickness. It's been said to be less noisy, which really has more to do with the grade of vinyl."</ref>

Following the [[vinyl revival]] of the 21st century, select manufacturers adopted [[bioplastic]]-based records due to concerns over the environmental impact of widespread PVC use.<ref name="Mcdill 2022">{{cite news |last1=Mcdill |first1=Stuart |title=Bioplastic records could help decarbonise music business, says developer |url=https://www.reuters.com/business/sustainable-business/bioplastic-records-could-help-decarbonise-music-business-says-developer-2022-09-21/ |access-date=12 April 2024 |work=Reuters |publisher=Thomson Reuters Corporation |date=21 September 2022 |ref=Mcdill 2022}}</ref><ref name="Dredge 2023">{{cite news |last1=Dredge |first1=Stuart |title=Sonopress and WMG launch sustainable 'EcoRecord' vinyl |url=https://musically.com/2023/09/28/sonopress-and-wmg-launch-sustainable-ecorecord-vinyl/ |access-date=12 April 2024 |work=Music Ally |date=28 September 2023 |ref=Dredge 2023}}</ref>