Thomas Moore says:
For me, it was The Beatles and “Yesterday.” The mood of the song, Paul McCartney singing, all got under my skin to my heart.
I remember LPs, OK? CDs came out, rather expensive, but they eventually replaced cassettes. Then, the MP3 craze and iTunes have almost replaced them. You can still back-up your iTunes songs to CD. But, not have to carry or load the CDs is convenience for all. And, MP3 files do not scratch or wear out.