The File Extensions Database


.M-JPEG File Extension

  • Developer by: Microsoft Corporation
  • Category: Digital video and movie Files

What is an .M-JPEG file?

.M-JPEG is M-JPEG data

The m-jpeg stands for Motion JPEG. M-JPEG is a video format that uses JPEG picture compression in each frame of the video. Frames of the video don't interact with each other in any way (like they do in MPEG-1, MPEG-2, etc..) which results in much bigger filesize, but in other hand, it makes the video editing easier because each of the frames has all of the information they need stored in them.

M-JPEG is used in very high quality video captures -- normally as the raw data format which is edited and compressed into another format after the editing process is completed. Unfortunaly M-JPEG is not a standard or even standardized -- each vendor has their own codecs and normally M-JPEG files created with one codec cannot be read with other vendor's codecs.

M-JPEG is the format that is recommended to use in video capture process as a raw data format. Editing this videostream is extremely easy and encoding the edited M-JPEG stream into final format (such as MPEG-1, MPEG-2 or Divx) gives normally the best possible video quality.


How to open:

Use Windows Media Player to playback *.m-jpeg files.

How to convert:

Probably can be exported to other formats.

How to solve problems with M-JPEG files

  • Associate the M-JPEG file extension with the correct application. On :
    Windows: Right click on any M-JPEG file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.M-JPEG files". Mac: Right click (or Ctrl-click) the M-JPEG file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .M-JPEG is M-JPEG data. Because only the current version supports the latest M-JPEG file format. Search, therefore, e.g. on the Microsoft Corporation manufacturer website after an available .M-JPEG is M-JPEG data update.
  • To make sure that your M-JPEG file is not corrupted or virus-infected, get the file again and scan it with antivirus software.