Discusses recordable digital video discs (DVD-R), highlighting technology, comparing DVD-R and recordable compact discs (CD-R); expected life of media; compatibility; recording process; recording time; applications: testing and development, distribution, storage and archival; and future developments. (PEN)

Evaluates different types of storage media for long-term archival storage of large amounts of data. Existing storage media are reviewed, including optical disks, optical tape, magnetic storage, and microfilm; three models are proposed based on document storage requirements; performance analysis is considered; and cost effectiveness is discussed.…

Describes the findings of the Committee on Preservation of the National Archives and Record Service, which compared the effectiveness of machine readable records and microfilm as storage media for archives. Discussion of the disadvantages of machine readable records focuses primarily on the rapid changes in technology. (4 references) (CLB)

Explores the new storage technology of optical data disks and introduces a data structure, the inverted signature tree, for storing data on optical data disks for efficient text searching. The inverted signature tree approach is compared to the use of text signatures and the B+ tree. (22 references) (Author/CLB)

Compares two approaches to document delivery and storage--microform and CD-ROM--in terms of storage capacity, accessibility, production, and cost considerations. Strengths and weaknesses of each medium are noted. It is concluded that libraries should select, integrate, and explore the different features of both technologies. (12 references) (MES)

Introduces the multicharacter trie as an index structure that can improve the time needed for retrieving full-text materials stored on CD-ROMs. The advantages of this structure compared to other structures are described, and experimental results comparing it to the widely used B+ tree and other structures used for full-text retrieval are…

The rapid growth and distribution of scholarly research in the middle and late twentieth century, the limited supply of old books and other paper-based materials, and the deterioration of items printed on acidic paper since the mid-1800s have meant that many libraries lack suitable copies of printed sources that their users would like to read. For…

A review of the literature was undertaken to determine whether purchasing DIALOG in the CD-ROM format or subscribing to the DIALOG online format would be the better solution for middle school students interested in information retrieval. This report begins by stating the problem and defining common computer terms. A review of the related…