[78-L] This is a hoot

[David Lennick]

Somebody knows nothing about record speeds, sizes and grooves, so he makes a 
website of it. Did you know that early sync discs were 12-inch? And that 16RPM 
was decided on because it was half of 32RPM which was being used for film 
soundtracks and that there are 16RPM 16-inch discs that hold 32 minutes of 
material?

Zounds!

http://www.videointerchange.com/vintage_78s.htm

dl