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M21 File - What is an .m21 file and how do I open it?

Learn about .M21 files and view a list of programs that open them.

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Overview

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.

More Information AXMEDIS MPEG-21 files may also be saved with an .MP21 file extension.

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3 votes

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Popularity3.0 | 1 Vote

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In-Depth

.M21 File Extension

2 file types use the .m21 file extension.

AXMEDIS MPEG-21 File

DeveloperAXMEDIS
Popularity
3.0  |  3 Votes
 

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.

More Information

AXMEDIS MPEG-21 files may also be saved with an .MP21 file extension.

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Programs that open M21 files

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Windows

AXMEDIS Editor

AXMEDIS Player

Category: Video Files

Updated: September 22, 2008

MPEG-21 File

DeveloperN/A
Popularity
3.0  |  1 Vote
 

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

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Mac

Apple QuickTime Player

Included with OS

Category: Video Files

Updated: November 7, 2007

FAQ

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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