Rhinos 2 inch CDs

In the 1980s/90s three inch CDs appeared on the market. They never did catch on. Rhino had the best series of oldies. 4 songs per CD, by 1950s and 1960s groups. Sometimes on their CD3s there were songs that were hard to find anywhere else on CD. There were probably at least 75 different titles. Sometimes Volume 1 and 2 such as this Tommy James. They came in long packaging, too. A couple here still sealed. At first they even came with an adapter (no longer necessary in newer CD players.