Each side of each sound recording is treated as a separate entry in the database. Multiple copies of the same issue with the same label yield only a single cataloguing record for the group, while copies with the same issue number but different labels have separate entries. Because of the numerous variations on the early discs, an exception has been made for the 7-inch Canadian Berliner series, where each copy has been given a separate entry in the database. English-language titles have descriptive information entered in English. French-language titles released primarily for the French market in Canada have descriptive information entered in French.
Releases intended for both markets have bilingual descriptions.
Entries in other languages, such as Italian or German, have title information transcribed in the language that appears on the disc. Descriptive information for these items is entered in English. Unless otherwise indicated in the Comments field, discs are black in colour. For certain series, such as the Berliner 7-inch discs, where the discs were manufactured in a variety of colours, the colour of each disc has been noted. Information supplied from a source other than the record label is entered in square brackets.