Introduction

DISC format overview
 Features
Disc size and recording time
Linear speed and track pitch
disk format
track layout
sector structure
ISO9660 compliant

DISC physical format
Division of areas within the disk and placement of each area
Program area track layout
・Track number
・Pause between tracks
・CD-DA track
・Program area recording range
Key to specify location on disk
・Logical sector number (LSN)
・Frame address (FAD)
sector structure
header field
subheader field
・File number
・Channel number
・Sub mode
・Coding information
・Empty sector information

DISC logical format
 overview
Volume/file structure
 ·overview
・Symbols representing data types
Volume Descriptor Set
・Boot record
・Primary Volume Descriptor
・Supplementary Volume Descriptor
directory
- Recording date/time format
・File flag
・File identification
・System information
・Attribute bit
path table
user file
 others
・Directory structure
・Multi volume
・Multi-session

boot system
System area
SYSTEM ID
Description of SYSTEM ID (description principle)
・Available characters
 ·fill in
・Definition of expression
・Other regulations
Explanation of each item
 security code
area code
Application initial program
Read ahead file and application initial program
1st READ FILE
Application initial program
How to create an IP
・SYS_ID.SRC
・SYS_SEC.OBJ
・SYS_ARE?.OBJ
・SYS_INIT.OBJ
IP placement

Appendix
Appendix A・Various sample lists・1
Appendix A・Various sample lists・2
Appendix A・Various sample lists・3
Appendix B Volume Descriptor

(C)SEGA ENTERPRISES, LTD., 1997