From Aaron Levinson: "...I think you'd be very surprised by the number of
actual test pressings
that do turn up..."
The practice of sending out a few hundred promo copies that looked like test
pressings was VERY common. We even occasionally sent out 10" acetates to get
a program director's attention as did Atlantic.
Bob Olhsson Audio Mastery, Nashville TN
Mastering, Audio for Picture, Mix Evaluation and Quality Control
Over 40 years making people sound better than they ever imagined!