Types of MP21 Files

Main MP21 Affiliation

.MP21

File Ext:	.mp21
Category:	AXMEDIS MPEG-21 Object

A media file stored in AXMEDIS content distribution format. It may store different types of media including video, images, and audio data. It may as well contain DRM copy-protection information and metadata.

Author:	AXMEDIS Products and Services
File Category:	Video Files
Location:	HKEY_CLASSES_ROOT\.mp21

Software Programs That Open The AXMEDIS MPEG-21 Object:

AXMEDIS Editor by AXMEDIS Products and Services

Windows

AXMEDIS Player by AXMEDIS Products and Services

Windows

More MP21 Files

.MP21

File Ext:	.mp21
Category:	MPEG-21 Multimedia File

A media storage format made by MPEG - Moving Picture Experts Group. It is based "meta-box" format containing video or audio data known as the "Digital Item;" It as well contains metadata which gives a description of the media.

Author:	Apple
File Category:	Video Files

Software Programs That Open MPEG-21 Multimedia File Files:

Apple QuickTime Player by Apple

Compatible with:

Windows

Mac

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Understanding MP21 Issues

Common Problems Opening MP21 Files

Missing AXMEDIS Editor

Double-clicking your MP21 file prompts the message "%%os%% Can't Open MP21 File". Usually, this is because you do not have AXMEDIS Editor for %%os%% installed. This will prevent you from double-clicking to open the MP21 file because the OS doesn’t know how to handle it.

Tip: When another MP21 application is installed, you can choose to open it by selecting "Show Apps" and using that program.

Wrong Version of AXMEDIS Editor is Installed

In other instances, your AXMEDIS MPEG-21 Object file version may not be supported by your version of AXMEDIS Editor. If you do not have the proper version AXMEDIS Editor (or any of the other programs listed above), you may need to try downloading a different version of it, or one of the other software applications listed above. Your AXMEDIS MPEG-21 Object file was probably created by a newer release of AXMEDIS Editor than what's currently installed your computer.

Tip: You can sometimes get hints about the right program version by right-clicking on the MP21 file, selecting "Properties", and looking at the version information.

Conclusion: The majority of MP21 file opening issues are due to not having the correct AXMEDIS Editor version installed.

Additional MP21 Opening Issues

Even with the correct version of AXMEDIS Editor installed, you can still experience difficulties opening MP21s. If you are continuing to have errors with loading MP21 files, other external issues might be to blame. Other contributing causes:

• MP21 file type Registry entries are wrong
• Corruption of the MP21 file description inside the Registry
• Defective install of a MP21 program, such as AXMEDIS Editor
• File corruption affecting your MP21 file
• The MP21 is infected with a virus
• Hardware associated with MP21 has outdated drivers
• Windows has inadequate resources to open your AXMEDIS MPEG-21 Object file