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Sony Releases Quad-Layer 128 GB BD-R XL Media
Sony is about to start selling the industry's first 128 GB write-once BD-R XL optical media. The discs will also be the first quad-layer BDXL media formally aimed at consumers, but bringing benefits to professionals that use BDXL today.
Although the general BDXL specifications were announced back in 2010 for multi-layered write-once discs with 25 GB and 33.4 GB layers, only triple-layer BDXL discs with a 100 GB capacity (generally aimed at broadcasting, medical, and document imaging industries) have been made available so far. By contrast, quad-layer 128 GB media has never seen the light of day until now.
As it turns out, increasing the per-layer capacity of Blu-ray discs (BDs) to 33.4 GB via a technology called MLSE (Maximum Likelihood Sequence Estimation) was not a big problem, and most of today's BD players and optical drives support the BDXL standard. However, increasing the layer count to four while ensuring a broad compatibility, signal quality across four layers, yields, and some other factors slow downed release of 128 GB BDXL essentially by eight years.
Related: Ultra HD Blu-Ray Specification Completed
(Score: 2) by arslan on Monday November 12 2018, @12:20AM (3 children)
Yea.. I've always wondered why no one's created optical media, or equivalent, in a thumb drive form factor - as in without all the electronics just raw media but in a more user friendly form factor like a thumb drive I can clip onto with rubberized or even water proof shell.
(Score: 2) by All Your Lawn Are Belong To Us on Monday November 12 2018, @06:45PM
Like Hi-MD [wikipedia.org]?
Or DataPlay?
(Though I admit DataPlay was a write-once...)
Or did I miss something about your post?
This sig for rent.
(Score: 2) by All Your Lawn Are Belong To Us on Monday November 12 2018, @07:20PM (1 child)
Crap. DataPlay [wikipedia.org]. And next time I use Preview... until the time after that. ;)
This sig for rent.
(Score: 2) by arslan on Monday November 12 2018, @10:44PM
Dataplay looks good, unfortunately never heard of it or even seen it. Must have been doomed due to non-technical reasons?