<p>The most likely cause for this are faulty multiplexer settings. In the export window, make sure both "export video" and "export audio" are checked (see screenshot). Then go to the multiplexer tab. The multiplexer gives you control about how your video and audio stream will be muxed (bundled) in one file. Make sure "mp4" ist selected, and the stream-compatibility (the second option) is set to "standard".</p>

<p><br>
<img src="https://i.sstatic.net/SlDim.jpg" alt="enter image description here"></p>

CC BY-SA 3.0
2014-11-11T00:49:13.473Z
2014-11-11T00:49:13.473Z
MoritzLost
<p>I encountered the same issue when I turned the sound off in the sequence.  When I re-enabled audio export, even though I didn't want to or need to, it saved as an mp4 again.</p>

CC BY-SA 3.0
2015-10-02T17:04:19.210Z
2015-10-05T15:00:10.800Z
2015-10-05T15:00:10.800Z
Pamela
<p>I have problems with my Premiere Pro. It is first time this has happened, and I cannot understand why. </p>

<p>I am creating a timelapse from my images. When I want to export media, I choose format H.264 (not H.264 Blu-ray), dimensions 1920x1080. Output name is visible as "Sequence02.mp4". </p>

<p>After export is finished, there is a file "Sequence02.m4v" on disk. <strong>Why?</strong> What causes Premiere to change file format by itself? I used Premiere before and this never happened. Maybe I'm using some different setting, but what could cause this change?</p>

CC BY-SA 3.0
2014-11-13T08:50:41.250Z
It's probably worth noting that `m4v` is just an alternate name for `mp4` (it can sometimes indicate the presence of drm, but that shouldn't be a problem here), so you should be able to simply rename the file.
evilsoup
<mp4><premiere><h.264>
Adobe Premiere saves m4v instead of mp4
Tschareck
# Adobe Premiere saves m4v instead of mp4

(Asked by: username_0 on 2014-11-10)

I have problems with my Premiere Pro. It is first time this has happened, and I cannot understand why.

I am creating a timelapse from my images. When I want to export media, I choose format H.264 (not H.264 Blu-ray), dimensions 1920x1080. Output name is visible as "Sequence02.mp4".

After export is finished, there is a file "Sequence02.m4v" on disk. **Why?** What causes Premiere to change file format by itself? I used Premiere before and this never happened. Maybe I'm using some different setting, but what could cause this change?

**Tags:** mp4, premiere, h.264

> **Comments:**
> **username_1**: It's probably worth noting that `m4v` is just an alternate name for `mp4` (it can sometimes indicate the presence of drm, but that shouldn't be a problem here), so you should be able to simply rename the file.  

---

## 2 answers

### Answer by username_3 on 2015-10-02. Score: 4 | Accepted answer

I encountered the same issue when I turned the sound off in the sequence. When I re-enabled audio export, even though I didn't want to or need to, it saved as an mp4 again.


---

### Answer by username_2 on 2014-11-11. Score: 3

The most likely cause for this are faulty multiplexer settings. In the export window, make sure both "export video" and "export audio" are checked (see screenshot). Then go to the multiplexer tab. The multiplexer gives you control about how your video and audio stream will be muxed (bundled) in one file. Make sure "mp4" ist selected, and the stream-compatibility (the second option) is set to "standard".

![enter image description here](https://i.sstatic.net/SlDim.jpg)


---

