For me I guess mostly it's CDs, but for the purposes of this thread that might be okay?
There are several I am pretty sure, but at the moment I cannot think of most of them.
Back when I was in the Air Force in around '79 I made friends with this guy from NJ who was always playing something by Springsteen. I mostly tolerated it but didn't get most of it. That would meet the LP criteria (AND 8-track) if there is that criteria. But when I got a CD player in '89 Darkness On The Edge Of Town was one of the very first CDs I bought anyway. But I didn't come around to it until the early 2000s.
I've been auditioning/breaking in a new pair of speakers and I am coming up on 90 hours, and to get there I've been playing a lot of CDs from my truly vast collection that I thought might be interesting when I bought them but for whatever reason they didn't grab me at the time so they may have been played once or twice and that was it.
Rosanne Cash's Ten Song Demo from I think around '95 was one of those, and the other night it really blew me away how good it is. The same for Kiki Dee's (of Don't Go Breaking My Heart fame with Elton John) live Naked Songs CD from about, I think, the same time period. Sounds wonderful! She actually does an acoustic version of Don't Go Breaking My Heart (but I wouldn't put that as the best work on the CD) and a real nice cover of Joni Mitchell's Carey.