If you are a Disney collectable of vinyl, you should check out this 20-minute film on "Command Performance". This was not made by, it was made by RCA where Milton Cross discuss how records are made, produced and manufactured. I have a collection of Disney LP's from both Disneyland and Buena Vista labels. Back in 1956 and right through the 70's, all the Disney LP's were pressed and of course it was pressed on hard wax and it manufactured by numerous pressing plants all around every state like New York, Los Angeles and other cities where the pressing plant took place. If you look up on a number of old Disneyland and Buena Vista LP's, the dead wax markings appeared on the tail end of a record. It had a lot of writing on it. Take for example like "Snow White", and the master number was "DQ-1201-A" and "DQ-1201-B" or the "Fantasia" soundtrack as I mentioned on another thread, the master number on the wax was "STER-101-A", "STER-101-B" and "STER-101-C". There was also a date on numerous Disney albums where it was mastered for example "Fantasia" was "2-12-71". That was the date when the master was made. They were put out by other plants like "Audio Matrix" out in New York City, "LW" where the initials used put out by a pressing plant and the initials "SS-BR". I don't really know what "SS-BR" stands for on numerous Disneyland & Buena Vista albums. You'll get the details after you watch this film. Enjoy! "Command Performance" - How Records are Produced and Manufactured If you have any questions, please post.