The custom CD art created by Sega's David Javelosa for the August 1993 Japanese Sonic CD prototype, which had been given to his team for making the US soundtrack
If you've always wanted to listen to experts & enthusiasts talk about video game preservation, then I have the podcast you've been waiting for!
HIDDEN PALACE episode 1 covers the Sonic-related beginnings of the prototype preservation site, Burning Rangers, & much more!