ISO 26429-3:2008

INTERNATIONAL ISO
STANDARD 26429-3
First edition
2008-07-15
Digital cinema (D-cinema) packaging —
Part 3:
Sound and picture track file
Emballage du cinéma numérique (cinéma D) —
Partie 3: Fichier de la piste sonore et visuelle

Reference number
©
ISO 2008
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ii © ISO 2008 – All rights reserved

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
ISO 26429-3 was prepared by the Society of Motion Picture and Television Engineers (as
SMPTE 429-3-2007) and was adopted, under a special “fast-track procedure”, by Technical Committee
ISO/TC 36, Cinematography, in parallel with its approval by the ISO member bodies.
ISO 26429 consists of the following parts, under the general title Digital cinema (D-cinema) packaging:
⎯ Part 3: Sound and picture track file
⎯ Part 4: MXF JPEG 2000 application
⎯ Part 6: MXF track file essence encryption
⎯ Part 7: Composition playlist
Introduction
The International Organization for Standardization (ISO) draws attention to the fact that it is claimed that
compliance with this document may involve the use of a patent.
ISO takes no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has assured ISO that he is willing to negotiate licences under reasonable and
non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statement of
the holder of this patent right is registered with ISO. Information may be obtained from:
Eastman Kodak Company
Intellectual Property Transactions
343 State Street
Rochester, NY 14650
USA
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights other than those identified above. ISO shall not be held responsible for identifying any or all such patent
rights.
iv © ISO 2008 – All rights reserved

SMPTE 429-3-2007
Revision of
SMPTE STANDARD
SMPTE 429-3-2006
D-Cinema Packaging —
Sound and Picture Track File
Page 1 of 9 pages
Table of Contents
1 Scope . 3
2 Normative References . 3
3 Overview . 3
4 Pattern Constraints . 4
4.1 General . 4
4.2 Baseline Operational Pattern . 4
4.3 Additional Constraints . 4
4.4 Labeling. 5
5 Essence Constraints . 6
5.1 Picture . 6
5.2 Sound. 6
6 Header Metadata Constraints . 6
6.1 General . 6
6.2 Time Code. 7
6.3 Track File Identity. 7
7 Descriptive Metadata Constraints. 8
8 Other Constraints and Definitions . 8
8.1 File Names and Asset Identity . 8
8.2 Synchronization. 8
9 MIME Type. 8
Annex A  Bibliography (Informative) . 9

Approved
MOTION PICTURE AND TELEVISION ENGINEERS
August 14, 2007
3 Barker Avenue, White Plains, NY 10601
(914) 761-1100 NOTE – Reference RFC 2045 corrected to RFC 2046 in Sections 2 and 9.
SMPTE 429-3-2007
Foreword
SMPTE (the Society of Motion Picture and Television Engineers) is an internationally-recognized standards
developing organization. Headquartered and incorporated in the United States of America, SMPTE has
members in over 80 countries on six continents. SMPTE’s Engineering Documents, including Standards,
Recommended Practices and Engineering Guidelines, are prepared by SMPTE’s Technology Committees.
Participation in these Committees is open to all with a bona fide interest in their work. SMPTE cooperates
closely with other standards-developing organizations, including ISO, IEC and ITU.

SMPTE Engineering Documents are drafted in accordance with the rules given in Part XIII of its
Administrative Practices.
SMPTE Standard 429-3 was prepared by Technology Committee DC28.
Page 2 of 9 pages
2 © ISO 2008 – All rights reserved

SMPTE 429-3-2007
1 Scope
This standard specifies the common features of the format of sound and picture Tracks Files for distribution of
D-Cinema content using the MXF file format. It defines data structures for interchange at the signal interfaces
of networks or storage media, but does not define internal storage formats for compliant devices or mappings
for particular essence encodings. This document is an Application Specification for D-Cinema applications. It
is based on the SMPTE 390M OP-ATOM standard, but is further constrained to address the needs of
distribution of D-Cinema content to exhibition sites.

2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this
standard. At the time of publication, the editions indicated were valid. All standards are subject to revision,
and parties to agreements based on this standard are encouraged to investigate the possibility of applying the
most recent edition of the standards indicated below.

SMPTE 330M-2004, Television — Unique Material Identifier (UMID)

SMPTE 377M-2004, Television — Material Exchange Format (MXF) — File Format Specification

SMPTE 379M-2004, Television — Material Exchange Format (MXF) — MXF Generic Container

SMPTE 390M-2004, Television — Material Exchange Format (MXF) — Specialized Operational Pattern
"Atom" (Simplifies Representation of a Single Item)

SMPTE RP 224, SMPTE Labels Registry

Internet Engineering Task Force (IETF) RFC 2046 (November 1996), Multipurpose Internet Mail
Extensions (MIME), Part Two: Media Types

3 Overview
A D-Cinema Sound and Picture Track File is an indexed, randomly-accessible MXF container for a single clip
of a single essence track. D-Cinema Sound and Picture Track Files shall not contain interleaved, multiplexed,
multi-scene or multi-format essence.

This standard is implemented as a set of restrictions on SMPTE 377M (MXF) and 390M (OP-ATOM). These
restrictions fall in four broad categories:

• Pattern (in this case, a restricted version of SMPTE 390M OP-ATOM)

• Essence (in this case, an essence container that complies with SMPTE 379M)

• Header Metadata (in this case, strict compliance with SMPTE 377M)

• Descriptive Metadata (in this case, a small set of essential data)

This standard is not a complete specification of a Track File for a particular essence type. It is intended to be
combined with a standard essence mapping, essence constraints and optional encryption container to form a
complete specification. These standards and respective combinations are beyond the scope of this standard.
Page 3 of 9 pages
SMPTE 429-3-2007
4 Pattern Constraints
4.1 General
D-Cinema Sound and Picture Track Files shall use the MXF file format [SMPTE 377M] in conjunction with the
specialized Operation Pattern, OP-Atom [SMPTE 390M]. Unless otherwise specified, Track Files shall follow
the normative provisions of SMPTE 377M, SMPTE 390M and SMPTE 379M (Generic Container) and their
references, notably SMPTE 336M (KLV).

The full glossary of terms and acronyms used in the MXF specification is given in the MXF File Format
Specification. It is not repeated here to avoid any divergence of meaning. Readers unfamiliar with MXF are
strongly encouraged to review the section of that document entitled “Definition of Acronyms, Terms and Data
Types”.
Implementers are cautioned that, although Track Files should contain only those structures allowed by
this document, SMPTE 377M nonetheless requires decoders to expect unrecognized (A.K.A. “dark”) KLV
packets. Please review the section entitled “KLV Coded Dark Components” in SMPTE 377M for more
information.
4.2 Baseline Operational Pattern

In accordance with SMPTE 390M, each Track File shall contain one Top-level File Package, representing
the Track File in its entirety, and one Material Package. The Material Package shall not be used for
playback but may be used to represent the offset and duration of the portion of the track intended for
reproduction. SMPTE 390M, Annex A, gives examples of how OP-Atom MXF files can be used including
the use of the Material Package tracks, Top-level File Package tracks and any lower-level Source
Package tracks.
4.3 Additional Constraints
4.3.1 Container
Track Files shall use the MXF Generic Container (GC) SMPTE 379M. Track Files shall use GC frame-based
essence mappings. The Sound and Picture essence mappings shall be defined by associated mapping
documents.
4.3.2 Interleaving
Track files shall have a single essence type within the MXF Generic Container. Essence in Track Files shall
be neither interleaved nor multiplexed between essence types.

4.3.3 System Item
The GC System Item is not used by Track Files.

4.3.4 Time Code track
Time code tracks within the Essence Container are not used by Track Files. Synthetic time code is, however,
present in the Header Metadata – (see Section 6.2).

From SMPTE 377M: “multiplexed” means putting different partitions one after the other whereas "interleaved" means
that the Essence Container itself has different components which are interleaved on a time division basis.
Page 4 of 9 pages
4 © ISO 2
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