Most people know that physical sound media history goes something like Wax Cylinders > Vinyl Records > Magnetic Tape > CD > Digital Formats (MP3).
It turns out, however, that even though that "Magnetic Tape > CD" bit was probably the shortest era, a lot more happened then than most of us have any idea about 
https://www.youtube.com/watch?v=9Uw3WIwnnOE #AdamSavage #SeanCharlesworth #Tested #engineering #sound #recording #technology
