How to fix incorrect MP4 file-length property?

Question

Running Windows 11 on Victus laptop w/AMD Ryzen 5000 series 7 & Radeon gfx.

Latest versions of Permier Pro Desktop and Media Encoder installed and updated.

I have about 39-44 minutes of MP4 footage that was originally captured on a Sony 4k camcorder. However (and I caused this probelm) when I renamed the file and moved it via USB, Windows changed the file properties associated with the video. (I never have any problems when I import or ingest directly from the SD card.)

All the video is still there - the file size is the same, etc, etc. But now Windows, Premier Pro and Media Encoder all think it's only 3 seconds long. The resulting mp4 only plays the LAST 3 sec of the original. There's probably a Sony or Windows hack out there somewhere to fix this, but I'd much rather fix my self-inflicted idiocy in Premier Pro or Media Encoder.

The original stuff is gone now. The SD card has since been formatted. Can anyone offer a solution?

eckiAMETeam · Accepted Answer

Did you try AME to convert the file?If that does not work: install ffmpeg and try ffmpeg -i input.mp4 -c copy output.mp4. This command copies the input stream. At least worth a try.

SpockusMax · Answer

Thanks for your prompt & professional reply.

I haven't tried anything yet. Past experience tells me that checking with the support community before compounding the problem is always the best option.

I will give these suggestions a shot and post the results.

Sign up

To post, reply, or follow discussions, please sign in with your Adobe ID.

Sign in to Adobe Community

To post, reply, or follow discussions, please sign in with your Adobe ID.

Scanning file for viruses.

This file cannot be downloaded