I HAVE A FEW PROMOTIONAL COPIES OF RECORDS, ALL ARE 45 RPM'S. MOST SOUND JUST LIKE THE THE FINAL RELEASE BUT SOME DON'T. I ALLWAYS FELT THAT THESE ARE WORTH HAVING IN A RECORD COLLECTION BECAUSE THERE ARE FEW OF THESE IN EXISTANCE. SOME OF MY PROMO'S CAME FROM RADIO STATIONS AND EVEN HAVE THE STATION CALL LETTERS OR OTHER INFO WRITTEN ON THEM. PROMOTIONAL RECORDS ALWAYS GET MY ATTENTION AND I GRAB THEM WHENEVER I CAN.
Promotional copy - any different in sound quality?
I wonder whether promotional LP copies "not for sale" were made any different leading to better sound quality. Are they any more worthy than non-promos?