42 GB on a Single DVD (Not Blu-Ray)

"Japanese researchers have figured out a way to cram a Blu-ray slaying 42GB onto a single, old fashioned DVD. How have they managed this? By making the small pits that hold the data bigger."

If they can do that with an old fashioned DVD, imagine what they can do with a Blu-ray Disk!

Japanese Eggheads Fit 42 GB Onto a Single DVD | Gadget Lab from Wired.com