@internetarchive 78's had been replaced with 33 LPs when I was a kid, but 78s were still common.

In the classical and jazz worlds, it seemed that the artists who recorded on 78s had more imagination and spirit than those who later recorded on 33's - the 78 performances were often far, far better than the 33 performances of the same piece.

As an example compare the energetic, jazzy, Stowkowski 78 performance of "The Plow That Broke the Plains" with the pathetic 33 version done by Mariner.