MIL-HDBK-9660B
hypertext documents that are portable from one platform to another. HTML documents are SGML documents with generic semantics appropriate for representing information from a wide range of domains. HTML has been in use by the World-Wide Web (WWW) since 1990.
u. Hybrid Disc - A multi-platform disc that combines more than one directory/file structure, typically ISO 9600 for the PC and HFS for the Macintosh. A shared hybrid disc has data that is used in common.
v. Incremental Recording (see also Packet W riting) - refers to writing to multiple data streams (packets) within a track, separated by gaps. Packets within a track can be either fixed-length or variable length. The access time of a packet-written disc is usually greater than that of a disc written by other modes. UDF will help improve the performance of packet-written discs while maintaining some backward compatibility with ISO 9660.
w. ISO/IEC 13346:1995 - Volume and File structure for Write-Once and Rewritable Media Using Non-Sequential Recording (NSR) for Information Interchange. (ECMA 167-1992). Defines the international file system format established for non-sequential recording of information on optical media. Prior to NSR, every write-once implementation used some form of proprietary format. NSR also supports mass storage devices such as jukeboxes. ISO 9660 is a file system standard for read-only.
NSR provides the ability to both read and write information among different operating systems. UDF is a
subset of ISO/IEC 13346.
x. ISO/IEC 9660:1988 - The international standard which defines the file structure for putting computer files on compact discs. ISO 9660 is a subset of the Yellow Book specification. This standard may be obtained from ANSI - see ANSI definition.
y. ISO/IEC 13490:1996 - (ECMA 168-1992), Volume and File Structure of read-only and write- once compact disc media for information interchange-Part 1: General; Part 2: Volume and file structure. The international standard which defines the logical structure of information on a CD-WO disc (Orange Book Part II). It allows for files to be written at any time. A Table of Contents does not need to be
written up front but can be added incrementally using packet writing. The standard includes directory
information required to support Unix and Windows NT, and is compatible with ISO 10646 (a standard supporting all the character sets in the world). It is not compatible with ISO 9660; however, it is possible to write a "conformant disc" containing both sets of volume and file structures.
z. ITSI BBS - Information Technology Standards Integrated Bulletin Board System. An official Government bulletin board for use in the development and distribution of DOD information technology standards and related information. For information call the ITSI Help Desk at (703) 735-8338, DSN:
653-8338.
aa. Lead-in/Lead-out - A lead-in is a track written for CD drives to recognize the beginning of the logical volume; i.e., where the Table of Contents (TOC) is written. A lead-out designates the end of a logical volume (end of disc or session). Original CDs and early CD-Rs allowed only one session - the beginning and end of a session were marked by a set of lead-in and lead-out blocks.
bb. MPC (Multimedia Personal Computer) - The specifications defining the minimum computer system functionality for MPC compliance. These specifications serve as a guide to consumers purchasing multimedia PCs, upgrade kits and components. The MPC Working Group Executive Board has adopted MPC3 (Release 1.3). The MPC3 Specification is not a recommendation for any particular system configuration and does not replace the MPC1 and MPC2 specifications; rather, it defines an
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