CDRW Drive burns images (literally) on CDs

I came across an interesting slashdot posting that was talking about a new Yamaha CDRW drive (that is going to be available in Japan in July) that has the capability to literally burn images on the unused part of the data side of a CD at around 250dpi. Isn't that cool? They call the technology DiscT@2 ("Disc Tattoo"). A Japanese site has some pictures (picture one, picture two) of how an image burned onto the data side of a CD looks.