# Is this an error message or user error?
**URL:** https://community.mp3tag.de/t/is-this-an-error-message-or-user-error/70729
**Category:** Support
**Created:** [February 20, 2026, 4:39am UTC](https://community.mp3tag.de/t/is-this-an-error-message-or-user-error/70729 "2026-02-20T04:39:12Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@maybemayra](https://community.mp3tag.de/u/maybemayra)
#### Post date: [February 20, 2026, 4:39am UTC](https://community.mp3tag.de/t/is-this-an-error-message-or-user-error/70729/1 "2026-02-20T04:39:12Z")
Hello! I just discovered this program and I am really enjoying it. However, I keep coming across this issue when I go to rename some files. Can anyone let me know what I am doing wrong? Or what I need to do? I attached some screenshots of what my work and the error message I receive.
---
### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [February 20, 2026, 6:11am UTC](https://community.mp3tag.de/t/is-this-an-error-message-or-user-error/70729/2 "2026-02-20T06:11:52Z")
Can you try [this internal version](https://download.mp3tag.de/support/B97A5407-3409-4E17-8C26-9179615D0D7F/mp3tag-v3.34-beta.2.internal-x64-setup.exe) and see if you still get this error message?
---
### Author:  [@maybemayra](https://community.mp3tag.de/u/maybemayra)
#### Post date: [February 20, 2026, 12:42pm UTC](https://community.mp3tag.de/t/is-this-an-error-message-or-user-error/70729/3 "2026-02-20T12:42:31Z")
Yes, I am still receiving the same error message.
---
### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [February 20, 2026, 1:27pm UTC](https://community.mp3tag.de/t/is-this-an-error-message-or-user-error/70729/4 "2026-02-20T13:27:10Z")
Thanks for sending the example file I've asked for via PM.
I've analysed the file and it's not a FLAC file, instead it's FLAC wrapped inside an MP4 container. So the file is actually a MP4 file, which should be possible to edit if you change the file extension to .mp4 or .m4a.
FLAC inside of MP4 is, uhm, let's say, unconventional 😃
---
### Author:  [@maybemayra](https://community.mp3tag.de/u/maybemayra)
#### Post date: [February 20, 2026, 1:32pm UTC](https://community.mp3tag.de/t/is-this-an-error-message-or-user-error/70729/5 "2026-02-20T13:32:14Z")
Oh, I see. I need find a audio file converter website or program! Thank you! I really appreciate it.
---
### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [February 20, 2026, 1:46pm UTC](https://community.mp3tag.de/t/is-this-an-error-message-or-user-error/70729/6 "2026-02-20T13:46:16Z")
If you are familiar with the command line, you could use `ffmpeg` and something like
`ffmpeg -i input.mp4 -map 0:a:0 -c copy output.flac`
to extract the audio without re-encoding anything (where `input.mp4` is the FLAC inside MP4 container you want to extract from).
---
### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 27, 2026, 1:47pm UTC](https://community.mp3tag.de/t/is-this-an-error-message-or-user-error/70729/7 "2026-02-27T13:47:14Z")
This topic was automatically closed 7 days after the last reply. New replies are no longer allowed.