TDK confirmed that it's working on a 200GB Blu-ray disc—that's four times the capacity of the largest first-generation dual-layer Blu-ray blanks that are just about to be released worldwide. TDK already showed a next-generation four-layer Blu-ray disc with 100GB of storage in May of last year.
No target date was given for the release of these larger-capacity discs, but the announcement does remind us of one thing: this Blu-ray format can scale up to some mind-boggling capacities. Impressive. You could back up your entire hard drive on one of these things.
TDK working on 200GB Blu-ray disc [TechDigest]