write once


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write once

Storage media that can be written to but not erased. WORM and CD-R disks are examples. Contrast with rewritable. See WORM and CD-R.
References in periodicals archive ?
UDO (Ultra Density Optical) offers "True" Write Once technology implemented at the physical media level.
Plasmon (LSE:PLM), a provider of professional archival storage solutions, has announced the launch of the new UDO (Ultra Density Optical) Compliant Write Once media.
Systems using rewritable magnetic disks cannot provide the same level of audit trail verification as true Write Once media and are challenged to meet archival storage regulations that demand stringent data authentication.
Sony is also developing a Write Once Media Format for archiving official public documents.
LTO Ultrium Write Once, Read Many (WORM) capabilities that are currently available with generation 3 products are currently planned for generation 4, providing for a cost-effective means for storing data in a non-rewriteable format to help address compliance requirements.
UDO media is available in Write Once and Rewritable media formats, which are certified ECMA and ISO standards.
The libraries, designed for entry-level and midrange customers, support both Plasmon Write Once and Rewritable 30GB UDO media.
Plasmon (LSE: PLM), the market leader for professional archival storage solutions, today announced the launch of the new UDO (Ultra Density Optical) Compliant Write Once media.
Verbatim offers both 30GB Write Once and Rewriteable UDO disks that provide highly reliable, long-term storage and 25-millisecond random access for less than $2 per GB.
The four new products are the Xerox UDO 100 single drive, its first professional blue laser optical disk drive designed specifically to meet the demands of long-term archival storage environments; the Xerox UDO 224 storage library, a small tower that houses two UDO drives and 24 media slots to hold up to 720 GB of storage; Xerox Rewritable media, which can be used to erase and rewrite data; and Xerox Write Once media, which uses an irreversible recording technique making it chemically impossible for the laser, regardless of the temperature, to alter the data on the recording surface once it's been written.