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EUROPEAN STANDARD EN 62107
NORME EUROPÉENNE
EUROPÄISCHE NORM June 2001
ICS 33.160.40
English version
Super video compact disc -
Disc-interchange system-specification
(IEC 62107:2000)
Super vidéodisque compact - Super-Video-Compact-Disc -
Système d'échange de disques - Systemanforderungen für den
Spécifications Plattenaustausch
(CEI 62107:2000) (IEC 62107:2000)
This European Standard was approved by CENELEC on 2000-09-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,
Portugal, Spain, Sweden, Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62107:2001 E
Foreword
The text of document 100B/261/FDIS, future edition 1 of IEC 62107, prepared by SC 100B, Audio, video
and multimedia information storage systems, of IEC TC 100, Audio, video and multimedia systems
and equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 62107 on 2000-09-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2001-12-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2003-09-01
Annexes designated "normative" are part of the body of the standard.
Annexes designated "informative" are given for information only.
In this standard, annex ZA is normative and annexes A and B are informative.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62107:2000 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60908 NOTE  Harmonized as EN 60908:1999 (not modified).
IEC 61104 NOTE  Harmonized as EN 61104:1992 (not modified).
__________
- 3 - EN 62107:2001
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to applies (including
amendments).
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
ISO/IEC 646 1991 Information technology - ISO 7-bit--
coded character set for information
interchange
ISO/IEC 10149 1995 Information technology --
Data interchange on read-only 120 mm
optical data disks (CD-ROM)
ISO/IEC 11172-3 1993 Information technology - Coding of EN ISO/IEC 1995
moving pictures and associated audio 11172-3
for digital storage media at up to about
1,5 Mbit/s -- Part 3: Audio
ISO/IEC 13818-1 1996 Information technology - Generic coding EN ISO/IEC 1997
of moving pictures and associated audio 13818-1
information -- Part 1: Systems
ISO/IEC 13818-2 1996 Information technology - Generic coding--
of moving pictures and associated audio
information -- Part 2: Video
ISO 9660 1988 Information processing - Volume and file EN 29960 1989
structure of CD-ROM for information
interchange
NORME CEI
INTERNATIONALE IEC
INTERNATIONAL
Première édition
STANDARD
First edition
2000-07
Super vidéodisque compact –
Système d'échange de disques –
Spécifications
Super video compact disc –
Disc-interchange system-specification
 IEC 2000 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun procédé, any form or by any means, electronic or mechanical,
électronique ou mécanique, y compris la photocopie et les including photocopying and microfilm, without permission in
microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http://www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
XA
PRICE CODE
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue

62107 © IEC:2000 – 3 –
CONTENTS
Page
FOREWORD .11
INTRODUCTION . 13
Clause
1 Scope . 15
2 Normative references. 15
3 Definitions, abbreviations, conventions and symbols. 15
3.1 Definitions . 15
3.2 Abbreviations. 19
3.3 Conventions and symbols . 19
3.4 Compatibility conventions . 21
4 SuperVCD introduction . 23
4.1 System overview. 23
4.2 SuperVCD system reference model . 23
5 General SuperVCD disc format . 25
5.1 SuperVCD disc structure. 25
5.1.1 Lead-in area . 25
5.1.2 Program area. 25
5.1.3 Lead-out area . 27
5.2 SuperVCD sector format . 27
5.2.1 SuperVCD sector Subheader structure. 27
5.2.2 Form 1 SuperVCD sector ECC and EDC fields. 31
5.2.3 Form 2 SuperVCD sector EDC field. 31
5.3 SuperVCD DATA track format . 31
5.3.1 SuperVCD Information files. 33
5.3.2 Segment Play Item (SPI) area. 33
5.3.3 Other files . 35
5.4 SuperVCD MPEG track format . 35
6 Data Retrieval and File system structure. 35
6.1 ISO 9660 Volume structure . 37
6.1.1 ISO 9660 Primary Volume Descriptor (PVD). 37
6.1.2 PVD Disc Label. 37
6.1.3 Path Table . 37
6.1.4 Directory record . 37
6.2 Directory structure . 39
6.2.1 Root directory . 39
6.3 SVCD directory. 39
6.3.1 INFO.SVD file . 41
6.3.2 ENTRIES.SVD file. 45
6.3 3 PSD.SVD file . 49
6.3.4 LOT.SVD file. 49
6.3.5 SEARCH.DAT file . 51
6.3.6 TRACKS.SVD file. 53

62107 © IEC:2000 – 5 –
Clause Page
6.4 MPEG2 directory. 55
6.4.1 AVSEQnn.MPG files . 55
6.5 SEGMENT directory. 55
6.5.1 Segment Play Items . 55
6.6 EXT directory. 57
6.6.1 SCANDATA.DAT file . 57
6.6.2 CAPTnn.DAT file. 61
7 MPEG2 stream coding . 63
7.1 MPEG sector format . 63
7.1.1 MPEG Video sector. 63
7.1.2 MPEG Audio sector. 65
7.1.3 Access Point sector . 65
7.2 MPEG PS coding . 67
7.2.1 PS pack_header. 67
7.2.2 PS system_header . 67
7.2.3 PES_packet structure . 69
7.2.4 Synchronization . 71
7.3 MPEG VIDEO format . 71
7.3.1 MPEG2 video formats . 73
7.3.2 MPEG2 video encoding restrictions. 73
7.3.3 Special Information in the MPEG video signal . 73
7.3.4 MPEG video parameters for Still Pictures. 75
7.4 MPEG AUDIO format . 75
7.4.1 Audio PES_packets. 77
7.4.2 Variable audio stream bit rate . 77
7.4.3 Surround Sound coding. 79
7.5 USER data. 81
7.5.1 User data structure . 83
7.5.2 Scan Information Data . 83
7.5.3 Closed Caption Data . 87
8 Segment Play Item (SPI) coding . 87
8.1 General. 87
8.2 Segment Play Motion Video . 87
8.3 Segment Play Still Picture. 87
8.4 Segment Play Audio . 89
9 Play Sequence Descriptor (PSD) . 89
9.1 General. 89
9.2 PSD file constraints . 91
9.3 Play List. 91
9.4 Selection list . 95
9.5 End List . 101
Annex A (informative) PSD interpretation . 103
Annex B (informative) Playback device function support. 111
Bibliography . 113

62107 © IEC:2000 – 7 –
Pages
Figure 1 – Example of bit ordering for one 8-bit byte . 19
Figure 2 – Example of byte ordering for 2 bytes . 21
Figure 3 – SuperVCD system reference model . 23
Figure 4 – SuperVCD disc layout. 25
Figure 5 – Example of layout of a DATA TRACK . 31
Figure 6 – Example of Segment Play Items in the Segment Play Item Area . 35
Figure 7 – Example of an MPEG track. 35
Figure 8 – Example of the directory structure . 39
Figure 9 – One MPEG Video sector. 63
Figure 10 – One MPEG Audio sector without extension stream . 65
Figure 11 – One MPEG Audio sector with extension stream . 65
Figure 12 – Access Point sector structure . 65
Figure 13 – Example of a valid pack structure with base frame split over two sectors. 81
Figure 14 – Example of a valid pack structure with extension frame split over two sectors . 81
Figure 15 – Example of Multi Default Selection . 99
Table 1 – Lead-in area subcode . 25
Table 2 – Form 1 SuperVCD sector fields. 27
Table 3 – Form 2 SuperVCD sector fields. 27
Table 4 – Layout of Subheader field . 29
Table 5 – Sub-header bytes . 29
Table 6 – Submode bit definitions . 29
Table 7 – SuperVCD Disc Label . 37
Table 8 – System Use Extension Information . 37
Table 9 – Layout of INFO.SVD . 41
Table 10 – System profile tags . 41
Table 11 – Status Flags . 43
Table 12 – Segment Play Item Contents byte . 45
Table 13 – Layout of ENTRIES.SVD file . 47
Table 14 – Layout of the Entry field in ENTRIES.SVD file. 47
Table 15 – Example of an MPEG track with additional Entries . 49
Table 16 – Example of the List ID Offset table. 51
Table 17 – Layout of SEARCH.DAT file. 51
Table 18 – Layout of TRACKS.SVD file . 53
Table 19 – Track Content byte . 55
Table 20 – Layout of SCANDATA.DAT file. 57
Table 21 – Layout of scandata_table(). 59

62107 © IEC:2000 – 9 –
Pages
Table 22 – Layout of the CAPTnn.DAT file . 61
Table 23 – Layout of C_Group N . 61
Table 24 – Pack_header fields . 67
Table 25 – PS system_header constraints. 67
Table 26 – Valid stream_id codes for PES_packets. 69
Table 27 – PES_packet header constraints . 69
Table 28 – Buffer size constraints . 71
Table 29 – Time coding constraints . 71
Table 30 – Accepted video formats for compressed moving pictures . 73
Table 31 – MPEG2 video encoding restrictions. 73
Table 32 – Sequence_header fields for Still Pictures. 75
Table 33 – Audio channel encoding. 77
Table 34 – MPEG1 (ISO/IEC 11172-3) audio constraints. 77
Table 35 – Audio PES_packet header . 77
Table 36 – MPEG2 audio constraints. 79
Table 37 – General structure of User Data . 83
Table 38 – General layout of a User_data_group. 83
Table 39 – Usage of Tag_name. 83
Table 40 – Layout of a User_data_group for Scan Information . 85
Table 41 – Layout of a User_data_group with Closed Caption Data. 87
Table 42 – Play List structure . 91
Table 43 – Layout of the List ID entry. 93
Table 44 – Layout of the Play Item Wait Time entry. 93
Table 45 – Definition of Play Item Number. 95
Table 46 – Selection List structure . 95
Table 47 – Definition of Loop Count and Jump Timing. 99
Table 48 – End List structure. 101
Table A.1 – Example of function keys for User Interaction mode . 107
Table A.2 – Example of function keys for Linear Play mode. 109
Table B.1 – Overview of specified support on the disc for implementation of
required playback device functions. 111

62107 © IEC:2000 – 11 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SUPER VIDEO COMPACT DISC –
Disc-interchange system-specification
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International
Organization for Standardization (ISO) in accordance with conditions determined by agreement between the
two organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62107 has been prepared by subcommittee 100B: Audio, video
and multimedia information storage systems, of IEC technical committee 100: Audio, video
and multimedia systems and equipment.
The text of this standard is based on the following documents:
FDIS Report on voting
100B/261/FDIS 100B/272/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.
Annexes A and B are for information only.
The committee has decided that the contents of this publication will remain unchanged
until 2005. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
62107 © IEC:2000 – 13 –
INTRODUCTION
There is a market need for a standardized fully digital Compact Disc based video reproduction
system. This Super Video CD specification standardizes and upgrades the current Video CD
format. It utilizes better Video and Audio quality. It also includes extensions for surround
sound multi-channel audio and provisions for PC playback, and is prepared for further future
improvements. This standard is based on using variable bit rate (VBR) MPEG2 coding for
more efficient use of disc capacity. The target for this standard is further to ensure the best
price/performance combination possible with the latest state-of-the-art technology available,
and to offer more flexibility for publishers to use the best video/audio quality given limited disc
capacity.
Attention is drawn to the possibility that some of the elements of this International Standard
may be the subject of patent rights. Recipients of this standard are invited to submit, with their
comments, notification of any relevant patent rights of which they are aware and to provide
supporting documentation.
62107 © IEC:2000 – 15 –
SUPER VIDEO COMPACT DISC –
Disc-interchange system-specification
1 Scope
This International Standard defines the basic specification of the Super Video Compact Disc,
(SuperVCD), characterized by high resolution and high picture quality, which matches current
TV receivers.
This standard is intended to be used as a basis for the design, production and compliance
testing of SuperVCD discs and playback devices to achieve compatibility with current and
future products.
The general SuperVCD disc structure is based on the CD-ROM system (see ISO/IEC 10149).
2 Normative references
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this International Standard. For dated references, subsequent
amendments to, or revisions of, any of these publications do not apply. However, parties to
agreements based on this International Standard are encouraged to investigate the possibility
of applying the most recent editions of the normative documents indicated below. For undated
references, the latest edition of the normative document referred to applies. Members of IEC
and ISO maintain registers of currently valid International Standards.
ISO/IEC 10149:1995, Information technology – Data interchange on read-only 120 mm optical
data disks (CD-ROM)
ISO/IEC 11172-3:1993, Information technology – Coding of moving pictures and associated
audio for digital storage media at up to about 1,5 Mbit/s – Part 3: Audio
ISO/IEC 13818-1:1996, Information technology – Generic coding of moving pictures and
associated audio information: Systems
ISO/IEC 13818-2:1996, Information technology – Generic coding of moving pictures and
associated audio information: Video
ISO 646:1991, Information technology – ISO 7-bit coded character set for information
interchange
ISO 9660:1988, Information processing – Volume and file structure of CD-ROM for
information interchange
3 Definitions, abbreviations, conventions and symbols
3.1 Definitions
3.1.1
bit rate
rate at which a compressed bit stream is delivered to the input of a decoder
3.1.2
mnemonics
descriptions of different data types used in this standard

62107 © IEC:2000 – 17 –
3.1.3
mode 2 form 1
CD-ROM track type
3.1.4
mode 2 form 2
CD-ROM track type
3.1.5
mux rate
rate value derived from the sector rate
3.1.6
playback device
any SuperVCD compliant player or other product, such as a PC
3.1.7
program stream
a collection of elementary streams
3.1.8
real-time stream
MPEG2 program stream containing video and audio components to be decoded and
presented in time, controlled by timing characteristics in the stream to the decoder
3.1.9
system clock reference
time stamp in the Program Stream
3.1.10
sector
smallest addressable part of a Digital Data Track in the information area that can be accessed
independently of other addressable parts of the area
[ISO/IEC 10149]
3.1.11
sector and subcode address representation
all Sector addresses and Subcode addresses are represented in the 3-byte BCD encoded
form mm:ss:ff. The minutes field is represented by "mm", the seconds field is represented by
"ss", the blocks (Sector) or frames (Subcode) field is represented by "ff"
3.1.12
time-stamp
time of a specific action such as the arrival of a byte or the presentation of a picture
3.1.13
track
continuous area on the disc with one and the same Track Number in the CD Subcode
3.1.14
variable bit rate
variation in time of arrival of the bytes at the input of a decoder

62107 © IEC:2000 – 19 –
3.2 Abbreviations
BCD Binary Code Decimal
bslbf bit string, left bit first
CBR
Constant Bit Rate
CD-ROM Compact Disc Read Only Memory
CRC Cyclic Redundancy Check
DTS Decoding Time Stamp
ECC Error Correction Code
EDC Error Detection Code
EOF
End of File
EOR End of Record
kbps kilo bit per second (1 024 bits/s)
lsb least significant bit
LSB Least Significant Byte
mbps mega bit per second (1 000 000 bits/s)
MPEG
Moving Picture Experts Group
MPEG PS MPEG2 Program Stream
msb most significant bit
MSB Most Significant Byte
N/A Not Applicable
NRT Non-Real-Time
PES
Packetized Elementary Stream
PS Program Stream
PSD
Play Sequence Descriptor
PTS Presentation Time Stamp
PVD Primary Volume Descriptor
RT Real Time
SCR
System Clock Reference
SPI Segment Play Item
TOC
Table of Contents
uimsbf unsigned integer, most significant bit first
VBR Variable Bit Rate
3.3 Conventions and symbols
Text written in italics is informative.
The mathematical operators used are similar to those used in the C programming language
and the use of brackets – {} – in tables is in accordance with the pseudo-c syntax (see 2.2
and 2.3 of ISO/IEC 13818-1).
Unless otherwise indicated, in this document the conventions used are as follows.
Bit ordering – The graphical representation of all multiple-bit quantities is such that the most
significant bit (msb) is on the left and the least significant bit (lsb) is on the right.
msb lsb
b7 b6 b5 b4 b3 b2 b1 b0
IEC  1012/2000
The most significant bit is the bit with the highest bit position number.
Figure 1 – Example of bit ordering for one 8-bit byte

62107 © IEC:2000 – 21 –
Byte ordering – Quantities which require more than eight bits for their representation are
held in more than one byte on the disc. For all such quantities, the ordering of bytes on the
disc (as seen at the interface to the disc driver) is such that the Most Significant Byte (MSB)
is first and the Least Significant Byte (LSB) is last.
Multiple-byte quantities are represented graphically such that the left-most or upper-most byte
is most significant and the right-most or lower-most byte is least significant.
__ MSB __ __ LSB __
‰‰
b15 . b8 b7 . b0
__ byte Bn __ __ byte Bn+1 __
‰‰
IEC  1013/2000
The most significant byte is the byte with the lowest byte position number.
Figure 2 – Example of byte ordering for 2 bytes
Character String – Character Strings are always given between double quotation marks, as
"_____", coded according to ISO 646 if not indicated otherwise.
Hex – All hexadecimal values are preceded by a $. The most significant nibble is on the left,
the least significant nibble is on the right.
Binary – Binary values are preceded by a % or presented within single quotation marks ' '.
The most significant bit is on the left, the least significant bit is on the right. A binary value is
represented by a 0, 1 or x where x is a 0 or a 1.
Decimal – All decimal values are preceded by a blank space or the range indicator (.) when
included in a range. The most significant digit is on the left, the least significant digit is on
the right.
Units of measure – 1 K denotes 1 024 units.
Range – Constant_1.Constant_2 or (Constant_1.Constant_2) denotes the range from and
including Constant_1 up to and including Constant_2, in increments of 1.
Ordering within tables – The items within a table are contiguous, starting with the top line
from the left to the right item, then the next line from the left to the right item, and so on, down
to and including the bottom line from the left to the right item.
3.4 Compatibility conventions
The SuperVCD specification is intended to ensure full compatibility, so that all discs can play,
with at least those functions designated as mandatory in the SuperVCD specifications, in all
compliant playback devices.
All mandatory parts of the specification have to be recorded on all discs and are intended to
be implemented in all playback devices.
Extension parts of the specification define non-mandatory additional functionality.

62107 © IEC:2000 – 23 –
A disc with extensions should play on a playback device only supporting the mandatory
functionality of the specification, and a playback device supporting some or all extensions
should also play discs without these extensions.
The specification also includes optional meta-data, intended to support improved performance
of a playback device. It is recommended that optional items be recorded on the disc, but it is
not required that they be included.
4 SuperVCD introduction
4.1 System overview
SuperVCD is a reproduction system for presenting full motion pictures with associated audio
by using the Compact Disc format. The system uses the ISO/IEC MPEG2 standard definitions
to compress the video, still picture and audio information for full screen TV quality pictures
together with associated high-quality audio. The SuperVCD disc can also carry high-quality
still pictures with associated audio and a Play Sequence Descriptor file for interactive control
of the playback of still and motion pictures.
Variable bit rate (VBR) MPEG coding is used for more efficient use of the disc capacity. The
playing time for a fully recorded disc can vary from 35 min to more than 70 min depending on
the average bit rate used.
The SuperVCD format is based on the CD-ROM Mode 2 disc format. SuperVCD discs can be
played on SuperVCD playback devices, and other compliant hardware and software platforms.
4.2 SuperVCD system reference model
The SuperVCD system consists of a SuperVCD disc and the playback device, normally a
SuperVCD player.
SuperVCD playback device
CD module MPEG
module
Super EFM CDROM CDROM Form 2 MPEG MPEG Video
VCD 2324 b sector output
disc CIRC decoder 2352 Mode 2 Decoder Audio
bytes output
de-mux Form 1 DATA Playback User
2048 b sector I/O
Controller Remote
control
PLAYER
module
IEC  1014/2000
Figure 3 – SuperVCD system reference model

62107 © IEC:2000 – 25 –
5 General SuperVCD disc format
The general SuperVCD disc structure is based on the CD-ROM system (ISO/IEC 10149) with
the specific additions and restrictions defined in this clause.
The disc is intended to be played either sequentially starting from the first MPEG Track, or by
playing Play Lists using the Play Sequence Descriptor (PSD) with on-screen “menu” control.
A karaoke/music application has normally one track per song. This means that song number 1
is recorded in Track No. 2, and song number 2 in Track No. 3, and so on.
A movie title can be divided into different coded parts, such as INTRO, COPYRIGHT, FILM,
CREDITS. The film itself can also be subdivided into chapters.
5.1 SuperVCD disc structure
The SuperVCD disc has a lead-in area, a program area, and a lead-out area.
Lead-in area
Track No. 1 SuperVCD DATA track
Program area Track No. 2
... SuperVCD MPEG tracks
Track No. n
Lead-out area
IEC  1015/2000
Figure 4 – SuperVCD disc layout
5.1.1 Lead-in area
The lead-in area is encoded as a CD-ROM DATA track (with track number = 00) containing
Empty Sectors of Mode 2 Form 2 with file number = $00, and Submode = $20.
Table 1 – Lead-in area subcode
POINT $A0
PSEC $20
PFRAME $00
5.1.2 Program area
There are two types of SuperVCD track format:
– SuperVCD DATA track format
– SuperVCD MPEG track format
The first track shall be a SuperVCD DATA track and other tracks shall be SuperVCD MPEG
tracks with playable MPEG2 audio/video Program Streams.
All sectors in a SuperVCD track are of CD-ROM Mode 2.

62107 © IEC:2000 – 27 –
5.1.3 Lead-out area
The lead-out area is encoded as a CD-ROM DATA track containing Empty Sectors of Mode 2
Form 2 with file number = $00, and Submode = $20.
5.2 SuperVCD sector format
A track is divided into Mode 2 sectors of 2 352 sequential bytes each. Each sector can be
uniquely addressed by a BCD-coded absolute time value in the header field of the sector.
SuperVCD information is stored in SuperVCD sectors.
There are two types of SuperVCD sectors, namely Form 1 and Form 2 sectors. A Form 1
sector has an extra Error Correction Code (ECC) field, as in CD-ROM Mode 1. A Form 2
sector is intended for real time MPEG data and has no ECC field, but 2 324 user data bytes
instead, giving a 14 % higher bit rate or capacity.
Table 2 – Form 1 SuperVCD sector fields
Field type Number of bytes Note
Synchronization 12 See CD-ROM
Header 4 See CD-ROM
Subheader 8 4 bytes repeated
Form 1 User Data
2 048 Same as CD-ROM Mode 1
Form 1 EDC
4 Same as CD-ROM Mode 1
Form 1 ECC 276 Same as CD-ROM Mode 1
Table 3 – Form 2 SuperVCD sector fields
Field type Number of bytes Note
Synchronization 12 See CD-ROM
Header 4 See CD-ROM
Subheader 8 4 bytes repeated
Form 2 User Data 2 324 Used for MPEG data
Form 2 EDC 4 Same as CD-ROM Mode 1
5.2.1 SuperVCD sector Subheader structure
The SuperVCD Subheader field consists of eight bytes: File Number, Channel Number,
Submode, and Coding Information bytes, each written twice for better data integrity.

62107 © IEC:2000 – 29 –
Table 4 – Layout of Subheader field
Sector byte number Byte value
16 File Number
17 Channel Number
18 Submode
19 Coding Information
20 File Number
21 Channel Number
22 Submode
23 Coding Information
The Subheader is used to define different types of sectors for storing information with special
characteristics. The values are defined in table 5.
Depending on the SuperVCD information, three types of sectors are defined, namely an
Empty sector with no user data information, a Data sector with non-real-time data and an
MPEG sector for MPEG real-time data.
The Submode byte defines the global attributes of a sector, and the Coding Information byte
defines if the sector contains MPEG PS stream data.
Table 5 – Sub-header bytes
Sector Type File Channel Submode bits Coding Used for
number number (msb.lsb) Information
Empty sector $00 $00 %00100000 $00 Lead-in, Lead-out, MPEG Track
Pause, padding of Play Item
Form 2, NRT
Segments to 150 sector boundary
Data sector $00 $00 %y0001000 $00 All sectors with valid data in a Data
Track that are not MPEG sectors
Form 1, NRT
MPEG sector $01 $01 %y11x001z $80 All sectors that contain an MPEG
Program Stream
Form 2, RT
The bits indicated as x, y, and z are defined below; other bits shall be set as indicated above.
Table 6 – Submode bit definitions
Bit number Indication Type Definition
0 z EOR Sectors containing the sequence_end_code of a Still Picture have
the End of Record bit set to %1
4 x Trigger The Trigger bit is set to %1 in a sector where the playback device
shall execute the Auto_pause function (see 9.3), or else set to %0
7 y EOF The End of File bit to be set to %1 in last sector of any file or Play
Item, else set to
%0
62107 © IEC:2000 – 31 –
5.2.2 Form 1 SuperVCD sector ECC and EDC fields
The EDC and ECC fields are defined as for CD-ROM Mode 1, with the following exceptions.
– The EDC shall be calculated from the beginning of the Subheader field to the end of
the 2 048 byte User Data field.
– Parity P of the ECC shall be calculated from the beginning of the Header field to the end
of the EDC field as if the content of the Header field were all zero.
– Parity Q of the ECC shall be calculated from the beginning of the Header field to the end
of the EDC field as if the content of the Header field were all zero.
5.2.3 Form 2 SuperVCD sector EDC field
The EDC field is defined as for CD-ROM Mode 1 with the following exception.
– The EDC shall be calculated from the beginning of the Subheader field to the end of
the 2 324 byte User Data field.
5.3 SuperVCD DATA track format
This shall be the first track of the disc.
The DATA TRACK starts with a pre-gap of 150 Empty sectors.
Data files use Mode 2, Form 1 (2 048 byte sector) DATA sectors, and MPEG files use Mode 2,
Form 2 (2 324 bytes) MPEG sectors.
The DATA TRACK contains ISO 9660 file management, SuperVCD Information files, Segment
Play Item Area and, optionally, other program data files.
(mm:ss:ff)
00:00:00 Pre-gap 150 sectors
00:02:00 User Area –
00:02:16 Primary Volume Descriptor ISO 9660
– –
00:04:00 SuperVCD Information files Disc Information "INFO.SVD" (mandatory)
Entry table "ENTRIES.SVD"(mandatory)
List ID Offset table "LOT.SVD" (extension)
Play Sequence Descriptor "PSD.SVD" (extension)
Search table “SEARCH.DAT”
Tracks table “TRACKS.SVD” (mandatory)
(Still Picture, Motion
...