MXF File, OP1a, Lossy JPEG 2000 in Generic Container

Sustainability of Digital Formats: Planning for Library of Congress Collections

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MXF File, OP1a, Lossy JPEG 2000 in Generic Container

Table of Contents

Identification and description
Local use
Sustainability factors
Quality and functionality factors
File type signifiers
Notes
Format specifications
Useful references

Format Description Properties

ID: fdd000273
Short name: MXF_OP1a_JP2_LSY
Content categories: moving-image, sound
Format Category: file-format
Other facets: container-wrapper, binary
Last significant FDD update: 2025-05-28
Draft status: Partial

Identification and description

Relationship to other formats
Full name	MXF File, OP1a, Lossy JPEG 2000 in Generic Container
Description	MXF OP1a file with JPEG 2000 Part 1, Core Coding, Lossy Compression essences in the Generic Container. The specifics about the carriage of this encoding is detailed in SMPTE ST 422, Material Exchange Format — Mapping JPEG 2000 Codestreams into the MXF Generic Container (available from SMPTE for purchase). ST 422 details six use cases for the carriage of lossy and lossless JPEG 2000 in the Generic Container: Frame-based wrapping – “FU” Undefined Frame-based wrapping – “P1” Progressive “I1” Interlaced Frame Wrapping, 1 field per KLV Element “I2” Interlaced Frame Wrapping, 2 fields per KLV Element “F1” Field Wrapping, 1 field per KLV Element “Cn” Clip-based wrapping
Production phase	Generally employed in post-production or editing (middle phase) and in limited modes of dissemination (final phase).
Contains	J2K_C_LSY, JPEG 2000 Part 1, Core Coding, Lossy Compression
Subtype of	MXF_OP1a, MXF Operational Pattern OP1a
Has subtype	MXF_RDD48, MXF Archive and Preservation Format Registered Disclosure Document (SMPTE RDD 48)
Used by	IMF_Package, Interoperable Master Format (IMF)
May contain	Audio and other essences of various types, not discussed at this time.

Local use

LC experience or existing holdings	None.
LC preference	See the Library of Congress Recommended Formats Statement for format preferences for moving image content.

Sustainability factors

Disclosure	See MXF, MXF_OP1a and J2K_C_LSY.
Documentation	See MXF, MXF_OP1a and J2K_C_LSY.
Adoption	Moderate levels of adoption in professional production depending on the subtype. See MXF_RDD48.
Licensing and patents	See MXF, MXF_OP1a and J2K_C_LSY.
Transparency	See MXF, MXF_OP1a and J2K_C_LSY.
Self-documentation	See MXF, MXF_OP1a and J2K_C_LSY. Accessibility Features See MXF.
External dependencies	See MXF, MXF_OP1a and J2K_C_LSY.
Technical protection considerations	See MXF, MXF_OP1a and J2K_C_LSY.

Quality and functionality factors

Moving Image
Normal rendering	Supported
Clarity (high image resolution)	J2K_C_LSY
Functionality beyond normal rendering	See MXF.
Sound
Normal rendering	See MXF.
Multiple channels	See MXF.

File type signifiers and format identifiers

Tag	Value	Note
Filename extension	See related format.	See MXF.
Internet Media Type	See related format.	See MXF.
Magic numbers	See related format.	See MXF.
Header partition pack key (MXF)	See related format.	See MXF_OP1a.
Other	See related format.	See MXF_OP1a for NARA File Format Preservation Plan ID.
Pronom PUID	See related format.	See MXF_OP1a.
Wikidata Title ID	See related format.	See MXF_OP1a.

Notes

General
History

Format specifications

See MXF, MXF_OP1a and J2K_C_LSY.

Useful references

URLs

See MXF, MXF_OP1a and J2K_C_LSY.
SMPTE RDD 48:2018 MXF Archive and Preservation Format Registered Disclosure Document (https://www.digitizationguidelines.gov/guidelines/rdd48-2018_published.pdf).
From MXF/JPEG2000 to MKV/FFV1: why we’re switching to a new file format from meemoo, Sept 2, 2020 (https://meemoo.be/en/news/from-mxfjpeg2000-to-mkvffv1-why-were-switching-to-a-new-file-format).

Last Updated: 05/28/2025