Motion Registration


MIME media type name:              video
MIME subtype name:                 mj2

Required parameters:               none
Optional parameters:               none
Encoding considerations:           files are binary and should be
                                   transmitted in a suitable encoding
                                   without CR/LF conversion, 7-bit
                                   stripping etc.; base64 is a suitable
                                   encoding;
Security considerations:           see [RFC3745]
Interoperability considerations:   A number of interoperating
                                   implementations exist within the
                                   MPEG-4 community with the formats
                                   derived from the ISO Base Media File
                                   Format;  and that community has
                                   reference software for reading and
                                   writing the file format.  Reference
                                   software for MJP2 is also available.
Published specification:           ISO/IEC 15444-3, Motion JPEG 2000
Applications:                      Multimedia
Additional information:

Magic number(s):                   12 byte string: X'0000 000C 6A50 2020
                                   0D0A 870A' (for all JPEG-2000 family
                                   files)
File extension(s):                 mj2 and mjp2 are both declared at
                                   http://www.nist.gov/nics/;  mj2 is
                                   preferred


Macintosh File Type Code(s):       mjp2 is registered with Apple

Person to contact for info:        David Singer, singer@apple.com

Intended usage:                    Common

Author/Change controller:          David Singer, MJP2 file format editor