High reliability
achieved through Ricoh-developed inorganic recording materials
The samples to be shipped are BD-R
and HD DVD-R, write-once disks for Blue-ray Disk and HD DVD respectively. They
have a capacity of 25 GB (BD-R) and 15 GB (HD DVD-R), approximately three to
five times that of current disks.
By employing highly sensitive
inorganic recording materials and high-precision stampers newly developed for
next-generation recordable DVDs, Ricoh was able to achieve high reliability when
writing and reading data. This will provide an advantage in further speed
increases and multilayer structures.
Next-generation writable DVDs are
gradually penetrating into the IT and consumer electronics markets, which are
expected to expand rapidly from 2008 and reach 800 million or more pieces being
shipped in 2010.
Ricoh's optical disk business
consists of development and sales of a variety of recordable writable DVDs and
hybrid CD-Rs (CDs with both ROM and recordable areas in a single disk), while
also selling its own recording materials and licensing and providing its own
manufacturing technologies.
Ricoh aims to provide the newly
developed next-generation recordable DVDs to end-user customers within the
year.
Source: justnow-press.de
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Inorganic is impressive, up until this point I believe all media has been made using organic dyes. I would imagine the logevity of the disks is extended now.
I'm no chemist, but I have a feeling that when current discs deteriorate it's not due to the carbon in them, but most likely something more reactive. There's probably some type of rather reactive metal involved in the dye in these - water loves to play with (and mess up) reactive metals.
Besides, the whole point of writeable media is the ability to change it. I don't expect any extremely stable non-Gold dye-based media from HD or BD.
