I opened the first of these at random:

http://128.237.157.9/pub/core-mp3s/

http://128.237.157.9/pub/core-mp3s/core-2000-02-25.mp3

Turned out to be an interesting historical snapshot in light of the current metal prices. A pre-9/11 discussion about the then-growing, now-defunct eGold. The thing that was trying to be Bitcoin before Bitcoin.

Kind of sad that we're stuck with the one that heats the Earth because Bush/Cheney decided we couldn't have the energy efficient one.