Although the Archive holds copies of almost all commercial recordings, some of the greatest treasures are from small independent labels or private 'one-off' recordings often representing the only sound legacy of that choir.
The Archive also holds a significant collection of private, test and special pressings, transcription discs and unissued recordings all of which represent the extraordinary diversity of the Archive.
The Archive holds a major collection of Radio & TV broadcasts, such as BBC Choral Evensongs, religious services, concerts and documentaries.
These broadcasts are of unparalleled historical importance, giving as they do a unique snapshot of the choir at that moment in time.
An extensive collection of commercial DVDs, together with film, radio and television based dramas, are also held in the Archive.