.M21 File Extension

There are 2 file types use the .M21 file extension:

  1. AXMEDIS MPEG-21 File
  2. MPEG-21 File

1. AXMEDIS MPEG-21 File

AXMEDIS MPEG-21 File
  • Developer AXMEDIS
  • Popularity
    3.3 (4 votes)
  • Category Video Files
  • Format N/A

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.

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

Software's name License Platforms
AXMEDIS Editor AXMEDIS Editor Windows
AXMEDIS Player AXMEDIS Player Windows

Updated: January 4, 2009

2. MPEG-21 File

MPEG-21 File
  • Developer N/A
  • Popularity
    3.0 (1 votes)
  • Category Video Files
  • Format N/A

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.

MPEG-21 may also include DRM information for copy-protection.

Software's name License Platforms
Apple QuickTime Player Apple QuickTime Player Freeware LinuxMacWindows

Updated: March 27, 2008

Search File Extensions