biodegradable CDs

I heard about this listening to NPR the other day: Sanyo has come up with a way to create biodegradable CDs, made out of corn. Currently, CDs (music and data) don't biodegrade, and they are filling up landfills (though our local recycling company "recycles" them, as much as that means for plastic). So making a polymer out of corn means that they can biodegrade. (I wonder if I could add my unused backup CDs on the compost in the back yard?) I'm assuming the process is similar to how Biocorp makes biodegradable plasticware out of corn.

Here is a link to a story about 'em. Sign me up! (Except for the CDs that I actually want to last a long, long time, like my iPhoto archives!)