5 CD-ROM, Utilities, Read a High Sierra (ISO-9660) Disk   H CD-ROM access routines for VAX/VMS                      29 November 1989I ------------------------------------------------------------------------      1 The programs in this directory were developed by:   $      United States Geological Survey      Branch of Astro Geology      2255 N. Gemini Drive       Flagstaff, AZ  86001   G for the purpose of reading the CD-ROMs produced in the ISO 9660 format  A standard (or in the "High Sierra" standard) on a VAX/VMS computer @ system.  Permission has been obtained from the U.S.G.S. to placeC these programs on the VAX SIG tape.  The programs are in the public ? domain, and are provided for use with the following disclaimer:   6 	"Although these programs have been used by the United2 	States Geological Survey no warranty expressed or3 	implied is made by the USGS as to the accuracy and 0 	functioning of the programs and related program3 	materials, and no responsibility is assumed by the  	USGS in connection therewith."   K The programs were produced to read the Voyager CD-ROMs to be read on VAXes.     M * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *   H The programs allow a file on an ISO 9660 format CD-ROM to be opened, andG 512 byte blocks of data read from the file relative to the beginning of 	 the file.   J The original files from the U.S.G.S., as downloaded from the SPAN network,( are   CDVMS2.TXT;2   and   CDVMS3.TXT;1.  H All other files were extracted from these .TXT files, with the exceptionG of the B2B.MAR program which was not in the original files and was sent C in hardcopy by U.S.G.S. and rekeyed.  All programs work with either F ISO 9660 or "High Sierra" format CD-ROMs.  Main programs provided are:  1      CDDIR     Do a directory listing of a CD-ROM :      CDCOPY    Copy a file from a CD-ROM to another device6      CDTYPE    Type the contents of a file on a CD-ROM    F The original version of CDDIR (CDDIR.ORIGINAL) was modified at ICDD toE default to a 3 character file extension since the LENOSP routine used G in CDDIR was missing.  The original version of CDOPEN (CDOPEN.ORIGINAL) E was modified at ICDD to correctly find and report the contents of the I extended attribute record (XAR).  The following subroutines are provided:   C      CDOPEN    Find and open a CD-ROM file, returning the offset of $                the start of the fileD      CDREAD    Read 512 byte block records relative to the beginning                of the file"      CDCLOSE   Close a CD-ROM fileC      CDSTAND   Determine if the CD-ROM is ISO 9660 or "High Sierra" B      CDATT     Obtain extended attribute record (XAR); CDATT is an(                ENTRY point within CDOPEN      B2B       Move bytes     7 All executables were produced on a VAX/VMS V5.2 system.     M * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *   ? These routines have been made available to the VAX SIG tape by:         Mark A. Holomany 4      JCPDS-International Centre for Diffraction Data      1601 Park Lane "      Swarthmore, PA  19081  U.S.A.      (215) 328-9403   I The disclaimer that appears at the beginning of this file applies also to H Mark A. Holomany and the JCPDS-International Centre for Diffraction Data (also known as ICDD).   L These routines were described in the session "CDROM Use on a VAX/VMS System"N (VA076) given at the Fall 1989 DECUS Symposium in Anaheim by Mark A. Holomany. The session was taped.  K Feel free to contact me at the above number should you have any comments on C these programs, or if you have any questions on CD-ROMs in general.    [End of AAAREADME.TXT]