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 |
|
Details: File format summary
: detailed report on file format 
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