Arturo Toscanini made a series of recordings for RCA Victor with the orchestra in 1941 and 1942. The masters for these records were damaged during the electroplating process, resulting in unusually high surface noise and distortion and they were not approved for release. In 1963, after extensive electronic editing, RCA Victor released one of the recordings on LP, the Schubert "Symphony in C Major". In 1977, RCA issued all of the recordings in a 5 LP boxed set and they were later digitally remastered and reissued by RCA on CD in 1992 and again, in 2006.