1、INTERNATIONAL STANDARD ISO/IEC 13490-2 First edition 1995-l 2-l 5 Information technology - Volume and file structure of read-only and write-once compact disk media for information interchange - Part 2: Volume and file structure Technologies de /information - Structure de volume et de fichier de supp
2、orts disque compact B lecture seule et B Bcriture unique pour /&change dinformation - Partie 2: Structure de volume et de fichier Reference number ISO/IEC 13490-2:1995(E) ISO/IEC13490-2:1995(E) Contents Section 1: General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 Parts references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 Cross - reference . .l 3.1 Input . 1 3.2 Output . 2 4 Conformance .2 4.1 Conformance of a medium . 2 4.2 Conformance of an information processing system . 2 5 Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 6 Definitions . 3 6.1 file set . 3 6.2 group ID 3 6.3 logical block 3 6.4 user ID 3 7 Notation . . . . . . . . . . . . . . . . . . . . . .
7、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 8 Basic types 3 8.1 16-Bit unsigned numerical values with most significant byte first . 3
8、 8.2 16-Bit signed numerical values with most significant byte first . 3 8.3 16-Bit unsigned numerical values with both byte orders .4 8.4 32-Bit unsigned numerical values with most significant byte first . 4 8.5 32-Bit signed numerical values with most significant byte first . 4 8.6 32-Bit unsigned
9、 numerical values with both byte orders . 4 8.7 Volume structure descriptor format . .4 8.7.1 Structure Type (BP 0). . 4 8.7.2 Standard Identifier (BP 1). . 4 8.7.3 Structure Version (BP 6). . 5 8.7.4 Structure Data (BP 7) 5 0 ISOllEC 1995 All rights reserved. Unless otherwise specified, no part of
10、this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. ISOllEC Copyright Office l Case Postale 56 * CH-1211 Geneve 20 l Switzerland Printed in Switzerland ii OISO/IE
11、C ISO/IEC 13490-2: 1995 (E) Section 2: Requirements for the medium for volume and file structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 9 Volume structure .6 9.1 Arrangement of information on a volume . .6 9.1.1 Sectors 6 9.1.2 Track . 6 9.1.3 Session 7 9.1.4 Volume space
12、7 9.1.5 Unallocated space of a volume . .7 9.1.6 Volume recognition space .8 9.1.7 Volume recognition sequence .8 9.2 Volume set 8 9.3 Volume structure descriptors . .8 9.3.1 Recording of volume structure descriptors .9 9.4 Volume Descriptor Set .9 9.4.1 Recording of Volume Descriptor Sets .9 9.4.2
13、Prevailing Volume Descriptor Set . 10 9.5 Volume space management . 10 9.5.1 Volume Space Table 10 9.5.2 Recording of Volume Space Tables . 10 9.5.3 Identification of Volume Space Tables 10 9.5.4 Volume Space Tables Location Directory 10 9.6 Transactions 10 9.6.1 Identification of a transaction . 11
14、 9.6.2 End Transaction Descriptor 11 9.6.3 Prevailing End Transaction Descriptor 11 9.6.4 End Transaction Track . 11 9.6.5 End Transaction Descriptor recording rule 11 10 Volume data structures .12 10.1 Primary Volume Descriptor 12 10.1.1 Structure Type (BP 0). 12 10.1.2 Standard Identifier (BP 1).
15、12 10.1.3 Structure Version (BP 6) 12 10.1.4 Reserved (BP 7). 12 10.1.5 Descriptor Character Set (BP 8). . 12 10.1.6 Implementation Identifier (BP 72). 13 10.1.7 Volume Identifier (BP 104) 13 10.1.8 Volume Set Identifier (BP 136). 13 10.1.9 Volume Set Size (BP 264) 13 10.1.10 Volume Sequence Number
16、BP 268). . 13 10.1.11 Logical Block Size (BP 272). 13 10.1.12 Control Flags (BP 280). 13 10.1.13 End Transaction Track (BP 284) . 13 10.1.14 Prevailing End Transaction Descriptor Location (BP 288). . 13 10.1.15 End Transaction Descriptor Recording Rule (BP 296). . 13 10.1.16 Maximum Interchange Lev
17、el (BP 304). 14 10.1.17 Maximum Character Set List (BP 308) 14 10.1.18 Volume Set Creation Date and Time (BP 312) . 14 10.1.19 Descriptor Recording Date and Time (BP 324) 14 iii ISO/IEC13490-2:1995(E) OISO/IEC 10.1.20 Application Use (BP 336) . 15 10.1.21 Reserved (BP 848) 15 10.2 Supplementary Volu
18、me Descriptor . 15 10.2.1 Structure Type (BP 0). 15 10.2.2 Standard Identifier (BP 1) . 15 10.2.3 Structure Version (BP 6) . 15 10.2.4 Reserved (BP 7) . 15 10.2.5 Descriptor Character Set (BP 8) . .15 10.2.6 Volume Identifier (BP 72) . 15 10.2.7 Volume Set Identifier (BP 104). . .15 10.2.8 Supplemen
19、tary Volume Descriptor Sequence Number (BP 232) . .16 10.2.9 Control Flags (BP 236). . .16 10.2.10 Descriptor Recording Date and Time (BP 240). . .16 10.2.11 Application Use (BP 252) . 16 10.2.12 Reserved (BP 764) 16 10.3 Volume Partition Descriptor 16 10.3.1 Structure Type (BP 0) . 17 10.3.2 Standa
20、rd Identifier (BP 1) . 17 10.3.3 Structure Version (BP 6). . .17 10.3.4 Reserved (BP 7) . 17 10.3.5 Descriptor Character Set (BP 8) 17 10.3.6 Implementation Identifier (BP 72) .I7 10.3.7 Volume Partition Identifier (BP 104) . 17 10.3.8 Volume Partition Location (BP 136). . 17 10.3.9 Volume Partition
21、 Size (BP 144) . .I7 10.3.10 Implementation Use (BP 152) 17 10.4 End Transaction Descriptor 17 10.4.1 Structure Type (BP 0) . 18 10.4.2 Standard Identifier (BP 1) . 18 10.4.3 Structure Version (BP 6) . 18 10.4.4 End Transaction Flags (BP 7). .I8 10.4.5 Reserved (BP 8) . 19 10.4.6 End Transaction Des
22、criptor Location (BP 72) . .I9 10.4.7 Prevailing Volume Descriptor Set Location (BP 80). . .19 10.4.8 Prevailing File System Descriptor Set Location (BP 88). 19 10.4.9 Previous Prevailing File System Descriptor Set Location (BP 96) . 19 10.4.10 Previous End Transaction Descriptor Location (BP 104) 1
23、9 10.4.11 End Transaction Track (BP 112) 20 10.4.12 Last Volume of Volume Set (BP 116) 2 0 10.4.13 Transaction Number (BP 120). 20 10.4.14 Descriptor Recording Date and Time (BP 128). . .20 10.4.15 Number of File Set Descriptors (BP 140). . .2O 10.4.16 Volume Space Tables Information (BP 144). . .20
24、 10.4.17 Path Tables Information (BP 400) .2O 10.4.18 Reserved (BP 656) 20 10.5 Terminating Descriptor 20 10.5.1 Structure Type (BP 0) . 2 1 10.5.2 Standard Identifier (BP 1) . 21 10.5.3 Structure Version (BP 6). . .21 10.5.4 Control Flags (BP 7) . 21 10.5.5 Reserved (BP 8) . 2 1 10.6 Track Specific
25、ation Record 21 10.6.1 Session Number (RBP 0) . 22 iv OISO/IEC ISO/IEC 13490-2: 1995 (E) 10.6.2 Track Number (RBP 4). 22 10.6.3 Track Type (RBP 8). 22 10.6.4 Track Contents (RBP 10). . 24 10.6.5 Track Flags (RBP 11). 24 10.6.6 Packet Size (RBP 12) . 24 10.6.7 Start Location of Track (RBP 20). . 24 1
26、0.6.8 End Location of Track (RBP 28). . .24 10.6.9 Last Written Sector (RBP 36) . 25 11 File set structure . .25 11.1 File set 25 11.2 File System Descriptor Set .25 11.2.1 Recording of File System Descriptor Sets . .25 11.2.2 Prevailing File System Descriptor Set . 25 12 File set data structures .2
27、6 12.1 File Set Descriptor .26 12.1.1 Structure Type (BP 0). 26 12.1.2 Standard Identifier (BP 1). 26 12.1.3 Structure Version (BP 6) 26 12.1.4 File Structure Version (BP 7). . 27 12.1.5 Descriptor Character Set (BP 8). .27 12.1.6 File Set Character Set (BP 72) . .27 12.1.7 File Set Identifier (BP 1
28、36) . .27 12.1.8 File Set Descriptor Sequence Number (BP 168). . .27 12.1.9 Control Flags (BP 172). . .27 12.1.10 Interchange Level (BP 176) . .27 12.1.11 Maximum Interchange Level (BP 180). . .27 12.1.12 Maximum Character Set List (BP 184) . .27 12.1.13 Domain Identifier (BP 188). . .27 12.1.14 Fil
29、e Set Creation Date and Time (BP 220). . .27 12.1.15 File Set Expiration Date and Time (BP 232). . 28 12.1.16 File Set Effective Date and Time (BP 244) . .28 12.1.17 Application Identifier (BP 256). . .28 12.1.18 Publisher Identifier (BP 386) . .28 12.1.19 Data Preparer Identifier (BP 5 16). . 28 12
30、1.20 Copyright File Identifier (BP 646) . .28 12.1.21 Abstract File Identifier (BP 776). . .28 12.1.22 Bibliographic File Identifier (BP 906). . .28 12.1.23 Application Use (BP 1 036) . .29 12.1.24 Reserved (BP 1 548). 29 12.2 Implementation Use Descriptor . .29 12.2.1 Structure Type (BP 0). 29 12.
31、2.2 Standard Identifier (BP 1). 29 12.2.3 Structure Version (BP 6) 29 12.2.4 Reserved (BP 7). 29 12.2.5 Implementation Identifier (BP 72). . .29 12.2.6 Implementation Use (BP 104) . 29 13 Directory and file structures . .29 13.1 Directory hierarchy . .29 13.1.1 IS0 9660 directories 30 1s0/lEc 13490-
32、2: 1995 (E) OISO/IEC 13.1.2 ISO/IEC 13490-2 directories . .31 13.1.3 Directory hierarchy size restrictions 32 13.1.4 Depth of a directory hierarchy .32 13.2 Recording of directory files . 32 13.2.1 Directory file length . 33 13.3 Path Table . 33 13.3.1 Order of Path Table Records .33 13.3.2 Recordin
33、g of Path Tables. . 34 13.3.3 Identification of Path Tables .34 13.3.4 Path Tables Location Directory .34 13.4 Pathname . 34 13.4.1 Resolved pathname . 35 13.5 Files 35 13.5.1 File sections . 35 13.5.2 Data space of a file . 37 13.6 Record structure 37 13.7 File identification 38 13.7.1 File identif
34、ier . 38 13.7.2 File version number 38 13.8 Associated file . 38 13.9 Alias File 38 14 Extended attributes 38 14.1 Recording of extended attributes for files and directories . 39 14.1.1 Recording of additional extended attributes for files and directories .39 14.2 Recording of extended attributes fo
35、r a Primary Volume Descriptor or a Supplementary Volume Descriptor or a File Set Descriptor 40 14.2.1 Recording of additional extended attributes for a Primary Volume Descriptor or a Supplementary Volume Descriptor or a File Set Descriptor 40 14.3 Extended attributes specified by this part of ISO/IE
36、C 13490 . 41 15 Directory and file data structures . .41 15.1 Directory Record . 41 15.1.1 Length of Directory Record (=L-DR) (RBP 0) .42 15.1.2 Location of File Section (RBP 2). . .42 15.1.3 Data Length (RBP 10) . 42 15.1.4 Recording Date and Time (RBP 18). . .42 15.1.5 File Flags (RBP 25). . 42 15
37、1.6 File Unit Size (RBP 26). . 43 15.1.7 Interleave Gap Size (RBP 27) . 43 15.1.8 Volume Sequence Number (RBP 28) . 43 15.1.9 Length of File Identifier (=L-FI) (RBP 32). .43 15.1.10 File Identifier (RBP 33) 43 15.1.11 Extended Attribute Area (RBP L-FI+33). . .44 15.1.12 Padding (RBP L-XAA+L-FI+33)
38、44 15.1.13 File Version Number (RBP *+L-XAA+L-FI+33) . .44 15.2 Path Table Record . 44 15.2.1 Length of Path Table Record (=L-PTR) (RBP 0) .45 vi OISO/IEC ISO/IEC 13490-2: 1995 (E) 15.2.2 Location of Directory (RBP 2). .45 15.2.3 Data Length (RBP 10) 45 15.2.4 Recording Date and Time (RBP 18) . .45
39、 15.2.5 File Flags (RBP 25). . 45 15.2.6 Reserved (RBP 26). 45 15.2.7 Parent Directory Number (RBP 28). . .45 15.2.8 Length of File Identifier (=L-FI) (RBP 32) .45 15.2.9 File Identifier (RBP 33). .46 15.2.10 Extended Attribute Area (RBP L-FI+33) . .46 15.2.11 Padding (RBP L-XAA+L_FI+33). . .46 15.3
40、 Extended Attributes .46 15.3.1 Extended Attribute format . .46 15.3.2 “CS” Extended Attribute .47 15.3.3 “PD” Extended attribute .49 15.3.4 “PM” Extended Attribute . .50 15.3.5 “RF” Extended Attribute . 51 15.3.6 “TF” Extended Attribute .53 15.3.7 “TI” Extended Attribute . 54 15.3.8 “FC” Extended A
41、ttribute .55 15.3.9 “CE” Extended Attribute . .56 15.3.10 “MF” Extended Attribute . .58 15.3.11 “UX” Extended Attribute . .59 15.3.12 “XR” Extended Attribute . .61 15.3.13 “SW Extended Attribute .63 15.3.14 “AU” Extended Attribute . .64 15.4 Path Component .65 15.4.1 Component Type (RBP 0). 66 15.4.
42、2 Length of Component Identifier (= L-CI) (RBP 1). 66 15.4.3 Component File Version Number (RBP 2) . 66 15.4.4 Component Identifier (RBP 4) . .66 15.5 File Section Record . .66 15.5.1 Volume Sequence Number (RBP 0). 67 15.5.2 Location of Extent (RBP 4) . .67 15.5.3 Data Length (RBP 12) 67 16 Levels
43、of medium interchange . .67 16.1 Level 1 67 16.2 Level 2 68 16.3 Level 3 69 16.4 Level 4 69 Section 3: Requirements for systems for volume and file structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 17 Requirements for the description of systems . . . . . . . . .
44、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 18 Requirements for an originating system . .70 18.1 General . .70 18.2 Mandatory access by user .70 18.2.1 Files 70 18.2.2 File set 70 18.2.3 Descriptors 70 vii ISOAEC 1349
45、0-2: 1995 (E) OISO/IEC 18.3 Optional access by user 71 18.3.1 Descriptors . 71 18.3.2 Records 73 18.3.3 File types . 73 18.3.4 Permissions 73 18.4 Restrictions . 73 18.4.1 Multivolume volume sets 73 18.4.2 Record length . 73 18.4.3 File Times 73 18.4.4 Information Times 73 18.4.5 Alternate Permissio
46、ns . 73 18.4.6 Extended Attributes 74 19 Requirements for a receiving system .74 19.1 General . 74 19.2 Files 74 19.2.1 File types . 74 19.2.2 Permissions 74 19.3 Mandatory access by user 74 19.3.1 Descriptors . 74 19.4 Restrictions . 75 19.4.1 Record length . 75 19.4.2 File Times 75 19.4.3 Informat
47、ion Times 75 19.4.4 Alternate Permissions . 75 Annexes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *. 77 A - Restrictions on a standard for recording . . . . . . . . . . . . . . . . . . . . . . . . . . . .
48、 . . . . . . . . . . . . . . . . . . . . . . . I. 77 B - Methods of interchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 C - CD-W0 disk f
49、ormat and system requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 VIII OISO/IEC ISO/IEC13490-2:1995(E) Foreword IS0 (the International Organisation for Standardisation) and IEC (the International Electrotechnical Commission) together form the specialised system for world-wide standardisation. National bodies that are members of IS0 or IEC participate in the development of International Standards through technical committees established by the respective organisation to deal with p
