Submitted by Freako on Thu, 02/18/2010 - 17:29 I guess the little black "rocks" are dust particles... From: http://www.synthgear.com/2010/audio-gear/record-grooves-electron-microscope/
I guess the little black "rocks" are dust particles...
From: http://www.synthgear.com/2010/audio-gear/record-grooves-electron-microscope/