Are you sure it isn't simply two lathes side by side? Sybcing them on PB would be a fub thiung. <L> On Jan 5, 2010, at 8:42 AM, Mike Gray wrote: > For "left" / "right" to produce 'binaural' would require two > entirely independent microphone mixers feeding two separate disc- > cutters. Anything else is a fantasy. > > Mike Gray > > Dave Lewis wrote: >> Edward Johnson, in his notes for Cala 551, "Stokowski Beethoven >> Symphony >> No. 7 and Other First Stereo Releases on CD" states: >> >> >> "In 2004, Anthony Fountain, Classical Archivist at Sony Music >> Studios in >> New York, found many lacquer masters that Stokowski and the All >> American >> Youth Orchestra had recorded in Hollywood after their 1941 summer >> tour. >> The most significant part of the discovery was that all the >> recordings >> were made in duplicate, with each pair of discs labeled "Left" and >> "Right" respectively.