Ricoh has announced that they've started shipping samples of their BD-R and HD DVD-R media to hardware manufacturers. Thanks to Ricoh-developed inorganic recording materials, these new discs offer high reliability when both reading and writing.
 

Ricoh Co., Ltd has developed recordable disks for Blue-ray Disk and HD DVD, the next-generation DVD formats, and starts shipping samples to hardware manufacturers.

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.
Ricoh plans to ship their newly developed BD-R and HD DVD-R to consumers by the end of the year. More information can be found here.