Details: File format summary

Details for: MJ2 (Motion JPEG 2000)

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Summary
Name	MJ2 (Motion JPEG 2000)
Version
Other names
Identifiers	Library of Congress Format Description Identifier: fdd000127 PUID: fmt/337 MIME: video/mj2
Family	JPEG 2000
Classification	Video
Disclosure
Description	Motion JPEG 2000 (MJ2) is a video file format known for its mathematically lossless compression, making it suitable for long-term video preservation. Standardized in 2002 as part of ISO/IEC’s JPEG 2000 (JP2) standard, MJ2 encodes timed sequences of images, with options for including audio. Unlike formats with temporal or inter-frame compression (e.g., MPEG-4), MJ2 compresses each video frame independently, enabling reversible, lossless quality. This feature makes it ideal for high-quality preservation, particularly for digitized film and analog videotape.
Orientation
Byte order
Related file formats	None.
Technical Environment
Released
Supported until
Format Risk
Developed by	None.
Supported by	None.
Source	Digital Preservation Department / The National Archives
Source date	18 May 2011
Source description	v.120- New description, library of congress fdd identifier and notes added as part of PRONOM Research Week 2024. Submitted by the J. Paul Getty Trust.
Last updated	03 Jan 2025
Note	https://www.loc.gov/preservation/digital/formats/fdd/fdd000127.shtml; https://www.iso.org/standard/41570.html; https://lhncbc.nlm.nih.gov/LHC-publications/PDF/pub9302.pdf