Chapp33.3

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SID Code Errors
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Liner Printer/Fabricator Indicators

https://www.discogs.com/forum/thread/792347
S, H or HS does not mean to split the runout strings up into stamped or etched parts. It's preferred to leave the runout string in one line.

‘RSG §12.2.7. For side identification and program identification on multi-program cartridges such as 8-tracks, please use A, B etc in place of 1, 2, One, Two, Side One, Side Two etc, including variations in any language.‘
BaOI Guidance
Formatting Texts
Formating
Strike-out generator
List of codes/ symbols/ numbers on center labels
Disneyfacts Pressing Plant page
https://blog.discogs.com/en/undo-how-to-revert-an-edit/
Pinging Link: https://www.discogs.com/forum/thread/736737
http://www.discogs.com/forum/thread/386878
Useful websites

Packaging info: https://web.archive.org/web/20220511162435/https://reference.discogs.com/wiki/packaging

Label Identification websites:
https://www.joostvandernet.nl/classical-music-on-lp/deutsche-grammophon-stereo-lps.html
https://web.archive.org/web/20160124232235/ronpenndorf.com/contents.html
(Only classical labels, but most changes were concurrent with pop versions. Includes: RCA Red Seal, Columbia Masterworks, London and Mercury Classical)
RCA Codes: https://www.discogs.com/forum/thread/694503

Capitol labels: http://www.friktech.com/btls/capitol/capitollabels.pdf
Capitol / Apple labels: http://www.friktech.com/btls/capitol/applelabels.pdf
Capitol cover numbers: https://www.friktech.com/btls/CoverNumbers.pdf

http://www.elvisrecords.com/
(This Elvis site gives an excellent overview of label changes for RCA releases. Very accurate!)
US PressingPlants
Good site for cover info and care.
http://lpcoverlover.com/