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It worked as an independent sublabel between 1978 to early 1984, mainly releasing LPs (HS-350xx), singles (H-30xx) and MCs (CH-50xx). From 1984 to 1986 it kept operating with Zafiro's reference number system (ZL-xxx for LPs and OOX-xxx for singles), and from 1986 to 1989 under Serdisco reference number system. On CD rereleases by Zafiro and BMG, Chapa's logo is rarely used.