Measuring 0.092 mm, the new paper-thin DVDs from Hitachi and Maxell feature Stacked Volumetric Optical Disc (SVOC) technology. That means 'thin' ;)
No doubt there are quite a few practical applications, but the one that jumps to mind first is that these lightweight DVDs would be mailable without needing extra postage. So expect your favorite junk mailer to send you a paper thin DVD some time soon.
Implications - As technological progress continues to increase at great speeds, one common fault of electronic devices is that they're made from rigid materials which can easily break upon contact with another solid surface. Introducing malleability as a design element into products conveys a corporation as forward-thinking and innovative.