Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 12: Non-linear PCM bitstreams according to the DRA formats (IEC 61937-12:2010) (english version)
33.170 Television and radio broadcasting / Теле- и радиовещание
33.160.30 Audio. Including tape recorders, records, magnetic tapes, cassettes, CDs, etc. / Аудиосистемы. Включая магнитофоны, пластинки, магнитные ленты, кассеты, компакт-диски и т.д.