Hitachi working on 100GB Blu-ray discs

Just when you thought 50GB of data storage was enough, Hitachi has to waltz in and offer double that amount with a new prototype four layer Blu-ray disc. Normally, you'd need a different optical head to read from a disc of this type, but that doesn't seem to be the case with this one. That is, if need be, Hitachi says it will play in regular Blu-ray drives that exist now (which includes our lovely PS3).

Well, there is a catch. All Blu-ray players would have to have their optical heads tweaked a little bit, but it's something that can be worked out in a firmware update. No word on a release for the discs, but as soon as they finish stabilizing the signal quality, we'll hear an announcement of some kind.

[Thanks, Gunegune!]