Talk:Direct Metal Mastering

ultrasonic "carrier"?
My understanding is that there was, indeed, an ultrasonic signal (but not a carrier, per se) added added to the audio, to improve the ability of the head to cut through the metal.

Also, the name of the process is potentially confusing, as the process does not directly produce a pressing master. At least one additional plating step would be needed to make one. WilliamSommerwerck (talk) 15:26, 8 May 2010 (UTC)