Anti-static plastic, the kind used in RAM envelopes and other component-wrappers, is an excellent candidate for high-density storage. Reminds me of the Lily Tomlin bit: "I bought a garbage can and brought it home in a plastic bag. When I got there, I put the bag in the can."
Any device resulting from their work would be a "write-once, read-many" format and could perhaps be used to store films or music.Link (via /.)
The researchers speculate that very dense memory blocks could be created by stacking the thin layers of the material on top of each other.
They team estimates that working devices could be up to 10 times more dense than current hard disks.