phase-change recording

phase-change recording

[¦fāz ‚chānj ri′kȯrd·iŋ]
(computer science)
An optical recording technique that uses a laser to alter the crystalline structure of a metallic surface to create bits that reflect or absorb light when they are illuminated during the read operation.
References in periodicals archive ?
The Maxell Professional Disc features a unique phase-change recording layer that creates a highly durable recording surface, low error rate and the ability to capture 1080i video and four tracks of audio.
In November Sony announced ultra-density optical (UDO): a phase-change recording scheme for storing at least 40GB (20GB/side) on 5.
In phase-change recording technology, a laser beam heats a thin-film material that can be in one of two states: (1) amorphous, in which there is very low reflectance, or (2) crystalline, in which there is very high reflectance.
Specially formulated with a rapid phase-change recording layer, TDK Snap N' Save DVD media maximizes the data transfer rate while minimizing the potential for errors.
And the phase-change recording layer is specified to sustain--for up to 1,000 rewrite cycles--the same ratio of amorphous-to-crystalline reflectivity (i.
To deliver high-speed rewriteable performance, Verbatim BD-RE media is produced with a technology based on Super Eutectic Recording Layer (SERL) technology, the proprietary phase-change recording layer technology developed by MKM and proven in Verbatim's earlier DVD+RW and DVD-RW media.
We are very pleased to be working with the Ovonyx team to use its reversible phase-change recording materials in our high density memory chips.
In addition, Mark Edge Recording was employed in the phase-change recording layer production to increase the pit density to 0.
To deliver high-speed rewriteable performance, Verbatim produces the media with A-SERL (Advanced Super Eutectic Recording Layer) technology, the proprietary phase-change recording layer technology developed by Mitsubishi(R) Kagaku Media (MKM), Verbatim's parent company.
This breakthrough in development was accomplished by fine-tuning the original phase-change recording material used for the conventional Ricoh CD-RW discs and by optimizing the film thickness of the recording materials," according to Tadatoshi Sakamaki, director and general manager DMS Division of Ricoh Company LTD, Japan.
Its phase-change recording material allows discs to be re-recordable and erasable, and a superior defect management system ensures accurate recording and playback.
It is compatible with dye recording formats, such as DVD-R and DVD+R, as well as phase-change recording formats, such as DVD-RW, DVD+RW, and DVD-RAM.

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