If you follow a few links you can get to a page with details of a particular recording and a further link to an mp4 file (not mp3).
However the mp4 file is in the domain pluto.lib.olemiss.edu
PINGing that domain gets the IP address 130.74.92.148 but no response.
Leaving off the pluto and PINGing lib.olemiss.edu gets the IP address 130.74.92.2 but again no response.
Leaving off the lib and PINGing olemiss.edu gets the IP address 130.74.92.3 but still no response.

I hope Vic gets somewhere with the University of Mississippi.