For fans of Old Time Radio, here's a good source for Ray's radio adaptations. You could probably download these for free, but for $5 bucks and convenience: http://www.otrcat.com/bradbury-collection-p-1134.html

$5 is pretty good value, but eager listeners should check out the links from my website here, as most of these items are available for free, and at pretty good quality, from sites like Archive.org.

What a great site Phil! Thanks for the link.

Listen here, too:
http://www.archive.org/details/GoldenApplesOfTheSun

(A few minutes of review on this site will uncover many other available authors and musicians.)