.M21 File Extension
2 file types use the .m21 file extension.
AXMEDIS MPEG-21 File
Developer | AXMEDIS |
Popularity |
3.0 | 3 Votes |
Category | Video Files |
Format | N/A |
What is an M21 file?
Media file created with the AXMEDIS Editor; saved in a packaged content distribution format and may contain multiple types of media; may also include descriptive metadata, and DRM copy-protection information.
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AXMEDIS MPEG-21 files may also be saved with an .MP21 file extension.
Programs that open M21 files
Windows
AXMEDIS Editor
AXMEDIS Player
MPEG-21 File
Developer | N/A |
Popularity |
3.0 | 1 Vote |
Category | Video Files |
Format | N/A |
What is an M21 file?
Multimedia file format developed by the Moving Picture Experts Group (MPEG); uses a "meta-box" format that contains time-based media, such as audio and video data, as well as metadata that describes the contents of the file.
More Information
MPEG-21 may also include DRM information for copy-protection.
Programs that open M21 files
Mac
Included with OS