33.4GB Blu-ray Layers Could Lead To More Spacious Optical Discs

Blu-ray adoption still has aways to go before it matches the ubiquity of DVD, but those who can't get enough storage are already looking beyond the first generation. We've already seen TDK working hard on a 320GB optical disc based around BD technology, and now there's a new report suggesting something entirely more reasonable. You see, a 320GB Blu-ray Disc is probably years away, but a new method of evaluating BD media quality has led to the discovery of a size increase that's much more modest.

The increase would apply to each layer, bringing them from 25GB (currently) to 33.4GB each. There are plenty of dual-layer Blu-ray Discs, so there's a theoretical new limit of around 66GB per disc. A new partial response maximum likelihood (PRML) signal processing setup would enable the 33.4GB layers to be read and written on, and best of all the new method could continue to use existing Blu-ray optics. In other words, these new, more spacious discs could still be accessed by Blu-ray burners and players that are already on the market.

Amazingly, this whole 33.4GB concept isn't entirely new. In fact, major companies have known about the possibility for awhile, but in the past it was remarkably difficult to evaluate jitter. Sony and Panasonic have since resolved the problem by developing the i-MLSE (Maximum Likelihood Sequence Estimation) evaluation index, with the former already announcing plans to "propose widespread adoption of i-MLSE via the Blu-ray Disc Association and other avenues." Obviously, Sony is a huge player in the Blu-ray realm, so if they start to push this, there's a good chance that Blu-ray Discs with 33.4GB layers could be a reality soon. Who knows when and if this will become a reality, but we're certainly looking forward to having discs bigger than our hard drives in the near future.
Via:  Tech-On!
realneil 4 years ago

Hmmmm,........I can envision an Optical drive with a large chunk of memory built into it. Then you put the pre-built OS Disk of choice into it and boot to it. A second Optical disk could be used to write data/burn CD's, and the 'Lil computer that it's all packaged in would have a large storage drive for data to used across all of the OS disks. We could have OSX, Win7, and Linux all in one box,...............

3vi1 4 years ago

When 1TB drives are now $100, more convenient and faster, why does anyone care about writable blue-ray?

I guess you might want one if you planned to copy blue-ray movies, but why else? You would have to get the discs cheap and need to write/retain a LOT of data for it to make any sense.

gibbersome 4 years ago

Exactly. And how quickly can you write data onto a Blu-Ray RW?

The only advantage is cheap way to distribute data, just like DVDs.

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