As you listen to music this weekend, take a few moments to ponder the birth of one thing and the death of the other. It was February 1949 that RCA introduced the 7-inch RPM record, their answer to Colombia’s 12-inch LP record which had been introduced the previous June. Listen to promotional recording for the new format.
Despite RCA’s best intentions to use the new format to promote “proper” music, the 7-inch single eventually became the heart and soul of a new form of music called rock’n’roll. And it still is, 63 years later.
The other format to think about is Sony’s MiniDisc, their magneto-optical storage medium first introduced in 1992. Having had a hit with the development of the CD, Sony thought they could duplicate that success with this new recordable digital format. They didn’t, although MiniDiscs were reasonably successful in Japan and for some professional audio applications.