Back in 2021, Ernie Smith wrote about the curious world of CD caddies:
The first time I ever saw a CD-ROM, I had never seen a regular CD before, and I thought that it came in a giant plastic case. To be fair to me, I was in middle school, and I had little experience with them. It was in a library, and the screen did not display anything related to multimedia, but general reference information—stuff like databases, for example. A couple of years later, I got a home computer, along with an audio CD player, and soon enough, a CD-ROM. But I always thought about that caddy, which I never saw on any of the computer equipment I owned. Why did it exist? And why, when CD-ROMs trickled down to my home, wasn’t there one?