The homespun CD

Article Abstract:

CD-ROM recorders compatible with the Compact Disk Recordable (CD-R) standard have dropped in price to as low as $2,000. While the disks are not erasable, they can be played on the millions of existing CD-ROM drives. CD-R units are useful for such applications as making CD-ROM prototypes and creating short runs of CD-ROM-based documents. Common features include being able to write to a disk over multiple sessions, dual- to hex-speed performance, SCSI-2 or proprietary interfaces, and 512KB to 32MB data buffers. CD-R units can store input in several standard audio, data, interactive or mixed recording and file formats. It is critical that the host PC be able to process and send data to the recorder fast enough, or the recording will fail because the single spiral recording track on a CD-ROM requires continuous, steady data input. Large data buffers and/or an on-board hard disk ameliorate this problem. Disk premastering software is briefly discussed.

Design and construction, CD-ROM, CD-ROM disks, Optical storage devices

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Miles of files: as your publications grow, so will your electronic-storage needs

Article Abstract:

Considering how quickly desktop publishers outgrow RAM and storage constraints, it is important to plan for making the most of storage available now and for determining future needs. An overall storage strategy must take into account the various phases of a document's life, as each phase may require a different storage medium. These phases are the on-line phase, when storage is needed for running programs and creating documents; the transport phase, when documents must travel in a medium to a client or service bureau; and the backup-archival phase. As a precaution, users should get twice the storage they think they'll need. On-line storage choices include hard drives and the Iomega Bernoulli Box II 44. Data may be transported via modems, floppies, an external hard drive or a streaming tape backup. Archival storage choices include streaming tape cartridges and Write Once Read Many (WORM) drives.

Desktop publishing software, Disk drives, Modems, Removable media drives, Hard disk drives, Optical disk drives, Modem, Storage Equipment, Microcomputer, Future Technologies, Guidelines, Hard Disk Drive, Archival Storage, Streaming Tape Cartridges, DTP Software, Optical Disk Drive, WORM, Removable-Media Drive

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Safe and sound

Article Abstract:

CD-ROM Recordable (CD-R) technology offers an inexpensive, reliable alternative for publishers who need daily backups or long-term archiving. Choosing the most appropriate hardware, however, can be confusing. Users need to understand various technical issues, such as the importance of maintaining steady data flows to discs and differences among file formats. CD-R is economical for long-term storage, second only to digital audio tape (DAT) in its cost per megabyte, but being a write-once technology, CD-R is not as appropriate for temporary backups or short-term archiving. In terms of reliability, optical media are not subject to jamming or breaking, as tapes are. Moreover, optical discs are immune to magnetic fields and are relatively shock proof. They have a shelf life of at least 30 years.

Optical disks (Storage media), Hardware buyers' guide, Software buyers' guide, Optical disks

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