Heh, I like the "firstworldproblems" tag.
You would have to be pretty naive to have gone all this time believing that CDs would last forever. Sure, all the salespeople back in the 80s and 90s told us this, but they only knew what they had heard or been told, and to be fair, they were drawing a comparison to casette tapes.
I don't know anyone who has a CD collection, who has not ripped them to some sort of digital format. True, if they were ripped to mp3s there was some loss, but most people couldn't tell you the difference anyway. I know I can't tell a difference. My hearing just isn't that sensitive I guess. I also can't tell much of a difference between Pepsi and Coke.
But yes, thank you Ms. Adrienne LaFrance for informing me that CDs deteriorate. However, it is not necessary to point out the blatantly obvious; pointing out the merely obvious will suffice. And I am SO happy that the Library of Congress is spending lots of taxpayer money studying this problem. While they are at it, they may want to investigate why metal corrodes and why bananas turn brown.