.m21
File Type 1 |
MPEG-21 File |
File Format |
Standard |
Usage |
Open manually |
Popularity |
★ ★ ★ ☆ ☆ Average |
Description |
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.
|
Open With |
macOS |
Apple QuickTime Player
|
|
Updated |
2007 |
File Type 2 |
AXMEDIS MPEG-21 File |
File Format |
Proprietary (AXMEDIS) |
Usage |
Open manually |
Popularity |
★ ★ ★ ☆ ☆ Average |
Description |
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.
|
Open With |
Windows |
AXMEDIS Editor
AXMEDIS Player
|
|
Updated |
2007 |
|