Originally released on Columbia 42964. It's hard to remember now how popular Johnny Cash was in the mid-1960s, at least for folks like me who first heard him in late-1960s, early 1970s hits like "A Boy Named Sue" and "What Is Truth?" And then later, we discovered his Sun Records roots, worshiping his 1950s classics like "I Walk The Line" and "Folsom Prison Blues." What came in between never registered much with me until I discovered how popular "Ring of Fire" was with my customers. So now, I humbly submit this hugely successful 1964 single. How huge? Well, it occupied the top of Bilozoard's U.S. Country chart for 6 straight weeks! That feat followed his hit from the previous summer, "Ring of Fire," which stayed on top for 7 weeks! And on the Bilozoard Pop charts? Yes, both "Ring" and "Understand" were Top 40 hits — peaking at #17 and #35, respectively. This is a copy of the Columbia Hall of Fame reissue, in its factory sleeve.