Then became Disco Criollo Odeon from January 1934 after a 1933 Argentine law prohibiting the use of the word "Nacional" by non-governmental entities. Then became Odeon from 1936.
At the beginning of the 20th century, pressing facilities were not present everywhere ... so Argentine market began with imported shellacs:
International Talking Machine Co. m.b.H. (imported from Germany) >> International Talking Machine Co.Ltd. (manufactured in Brazil) >> (first manufacturing plant in Argentina managed by Max Glücksmann: The Argentine Talking Machine Works) >> Disco Nacional (1920). Just before Disco Nacional, Max Glücksmann, managed artist-dedicated labels: Disco Rob. Firpo (for artist Roberto Firpo), and Disco Gardel-Razzano (for the duo Carlos Gardel / José Razzano), before being merged under Disco Nacional, as Max Glücksmann was signing more artists.