When you record a fair amount of radio, not everything you preserve will stand the test of time. One recording I have from over 20 years ago is labeled, "'Democracy Now'--General Wesley Clark rally."
When I unearthed that recordable CD, I remembered, "Oh, that's right. General Clark ran for president in 2004." Respect to him for running--but there's no urgent reason for me to listen to that edition of "Democracy Now" again.
Such is the temporary nature of radio.