;; -*- lexical-binding: t -*-
;;
;; this file:
;;   https://dataswamp.org/~incal/emacs-init/isrc-verify.el
;;
;; source:
;;   https://en.wikipedia.org/wiki/International_Standard_Recording_Code
;;
;; history:
;;   1986 - ISO 3901 (updated 2001)
;;   1989 - endorsed by IFPI, RIAA, and the Japanese recording industry
;;
;; main idea/principle:
;;   An ISRC denotes _a specific recording_, not a general
;;   composition or tune; thus any remastering of the material should
;;   get their own (new) ISRC.
;;
;; the format:
;;   Always 12 items: CC-XXX-YY-NNNNN
;;
;;   CC, country code (ISO 3166-1-Alpha-2)
;;       (Note: "US" but also "QM" is the USA due to them
;;        overflowing their numbers.)
;;
;;   XXX, alphanumeric registrant
;;
;;    YY, year (last two digits)
;;
;; NNNNN: the individual audio or video recording.
;;        NNNNN will be unique for that song, to that year

(provide 'isrc-verify)