Comment I swear I've seen this before—Cranberry Diam (Score 1) 261
These "diamond-hard stone" discs can withstand "temperatures extending up to 176 degrees Fahrenheit as well as UV rays that would destroy conventional DVD discs."
http://www.engadget.com/2009/11/14/cranberry-diamondisc-the-35-dvd-thatll-last-longer-than-your/