Activate Mpeg 4 Codec in Movie Studio 2025 Platinum

emmrecs wrote on 4/10/2025, 4:00 AM

Welcome to the Magix user to user forums.

Has anything changed on your computer since you were last able to use the mp4 codec? e.g. a Windows update or even changing the OS completely, from Win 10 to Win 11?

Two things you write need a little more detail from you, I think:

Disabling your antivirus was a good move but did you also temporarily disable your firewall?
How, exactly, did you try to activate as administrator? Was it by right-clicking on the program icon on your desktop and choosing the option to "Run as administrator"?

If you did all the above and the activation still failed (I confess I am very puzzled as to why you were previously able to work with mp4 files but now cannot) I think you need to contact infoservice@magix.net to ask whether there is a problem with the activation server, and/or create a Support Ticket (use the Support header from any forum page) read carefully through each subsequent page, always choosing the option to Ask Support or Email Support.

HTH

Jeff
Forum Moderator

johnebaker wrote on 4/10/2025, 5:54 AM

@William-Keeth

Hi

In addition to @emmrecs comment.

Does the popup occur when opening an existing project, or when adding video to the timeline?

If when adding to the timeline, are the videos from a new source or videos that could be previously imported?

. . . MP4s . . . .

MP4 is not a 'video format', it is a container file format that can contain several different video and audio encoding formats, eg:

video: h.264 (AVC), h.265 (HEVC) and many more
audio: AAC, AC3 (stereo and surround sound)and several more.

John EB
Forum Moderator

William-Keeth wrote on 4/10/2025, 1:14 PM

@emmrecs I did all of the above and it failed.

@johnebaker It won't work for a new file and when I open the demo file I cannot add a MP4 because it repeats the failure to activate the codec. I deleted all old files when I cleared the system of anything MS2025 related.

johnebaker wrote on 4/10/2025, 2:39 PM

@William-Keeth

Hi

. . . . It won't work for a new file . . . .

We need to know the file format and encoding you are working with.

Download and install MediaInfo and analyse the video file you are trying to import and post the results, see this tutorial on how to set up MediaInfo and analyse a video clip for all the data required.

John EB

AAProds wrote on 4/10/2025, 7:59 PM

@johnebaker

MP4 is not a 'video format',

John, the issue seems to be that the standard "MPEG 4 activation" is not working (quite a few occurrences over the years), as opposed to some odd type of MP4.

I'll throw this into the ring. John, you might like to assist with the "Registrar Home 8" program, although I'm not sure it's needed. That key can easily be found just using Regedit. I have that key on my system.

https://www.magix.info/es/foro/what-do-i-have-to-do-to-be-able-to-edit-mp4s-again--1252365/#ca1578331

johnebaker wrote on 4/11/2025, 1:54 AM

@AAProds

Hi Al

. . . . the issue seems to be that the standard "MPEG 4 activation . . . .

It may be, then again we have been caught out with 'non standard' combinations of video/audio codecs in 'MP4' videos before.

Until we know for certain the video encoding, diving into the registry is, IMHO, the last option to try.

John EB

AAProds wrote on 4/11/2025, 9:10 AM

@William-Keeth

William, are you able to share a problem file on a file-sharing site such as Google Drive or Dropbox for us to try? That will quickly indicate where the problem lies.

William-Keeth wrote on 4/11/2025, 6:41 PM

AAProds wrote on 4/10/2025, 8:59 PM

@johnebaker I tried the reg edit solution you mentioned, even to the point of activating locked registry entries. It didn't help. :(

@AAProds What kind of problem file do you want to see?

AAProds wrote on 4/11/2025, 7:26 PM

@William-Keeth

One of the MP4 files that is causing the codec activation message to be displayed:

It won't work for a new file and when I open the demo file I cannot add a MP4 because it repeats the failure to activate the codec.