Laminated pressings used a low quality filler core but then had a high quality playing surface bonded to it. This playing surface was shellac rich which meant that the surface noise was reduced massively. The main users of Laminated Pressings in the US were Columbia (1923-33 and again in the 1940s) and OKeh (1926-33 and again later in the 1940s). In Britain Columbia (1923-31)and Parlophone (1928-31) used laminated pressings until the merger with HMV into EMI in 1931. Thereafter all EMI records were produced on stock shellac. In continental Europe many Columbia and HMV (1928-1940s) pressings were also laminated. The most interesting exception was Australia, where laminated pressings were the rule rather than the exception from 1923 (Columbia) and 1931 (HMV) right through to the end of 78s. Because of limited pressing facilities, even labels such as Decca appeared as laminated pressings. The superior surfaces of the Australian laminated pressings have thus long been prized by collectors.