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From: Patent Tactics, George Brock-Nannestad Hello, Bob Ohlsson wrote: > -----Original Message----- > From joe salerno: "...Shortly after that film was made the lacquer > recording > process must have become popular, making the film quickly outdated..." > > I can remember reading somewhere years ago that the use of lacquer masters > for replication didn't happen immediately because of quality issues. Does > anybody know anything about this? ----- I think it has to with the fact that the hot stylus technique did not get used until 1948. The noise level when cutting wax was 4 dB lower than when cutting lacquer cold. The above figures are from memory only. However, I do know that the principle was invented early 1920s by Miessner. At EMI, lacquer was used for colonial recording from the late 1930s; I suppose this logistic choice was sensible and outweighed the increased noise that would be masked by the shellac mixture. And the end users were probably not esteemed as being quality-conscious. Kind regards, George