# Why are the results different from ffprobe?
**URL:** https://community.mp3tag.de/t/why-are-the-results-different-from-ffprobe/68043
**Category:** General Discussion
**Created:** [April 1, 2025, 11:00am UTC](https://community.mp3tag.de/t/why-are-the-results-different-from-ffprobe/68043 "2025-04-01T11:00:02Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@safethumb2](https://community.mp3tag.de/u/safethumb2)
#### Post date: [April 1, 2025, 11:00am UTC](https://community.mp3tag.de/t/why-are-the-results-different-from-ffprobe/68043/1 "2025-04-01T11:00:02Z")
Audio and (Video?) file metadata is different with ffprobe.
Is this correct behaivior? or the bug?
I think ffprobe's results good.
The file (yt-dlp -f 251 -x --add-metadata [https://youtu.be/IidyyM3giZw](https://youtu.be/IidyyM3giZw) )
yt-dlp-output.opus
ffprobe result:
```auto
Metadata:
encoder : Lavf61.7.100
title : 【アナデン】Chaotic Recognizer (8bit Arrange)【Another Eden】
date : 20210709
purl : https://www.youtube.com/watch?v=IidyyM3giZw
synopsis : アナザーエデン8bitアレンジCD，Another Eden 8bit Arrange CD，Track01
comment : https://www.youtube.com/watch?v=IidyyM3giZw
artist : Smiling Scene
```
mp3tag :
```auto
ARTIST : Smiling Scene
DESCRIPTION : https://www.youtube.com/watch?v=IidyyM3giZw
ENCODER : Lavf61.7.100
LANGIJAGE : spa
PURL : https://www.youtube.com/watch?v=IidyyM3giZw
SYNOPSIS : アナザーエデン8bitアレンジCD，Another Eden 8bit Arrange CD，Track01
TITLE :【アナデン】Chaotic Recognizer (8bit Arrange)【Another Eden】
YEAR : 20210709
```
---
### Author:  [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)
#### Post date: [April 1, 2025, 11:02am UTC](https://community.mp3tag.de/t/why-are-the-results-different-from-ffprobe/68043/2 "2025-04-01T11:02:04Z")
What exactly is different or not existing in Mp3tag?
Do you mean `DESCRIPTION` in Mp3tag which is `comment` in ffprobe?
Or the additional `LANGIJAGE` in Mp3tag?
---
### Author:  [@safethumb2](https://community.mp3tag.de/u/safethumb2)
#### Post date: [April 1, 2025, 11:03am UTC](https://community.mp3tag.de/t/why-are-the-results-different-from-ffprobe/68043/3 "2025-04-01T11:03:58Z")
`Comment` \> `Description`
`date` \> `year`
and, `language`
these.
I don't really know why `language` added.
---
### Author:  [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)
#### Post date: [April 1, 2025, 11:05am UTC](https://community.mp3tag.de/t/why-are-the-results-different-from-ffprobe/68043/4 "2025-04-01T11:05:48Z")
These are just displaying names. Every software is using its own [displaying names](https://docs.mp3tag.de/mapping/).
The technical field names actually used in the files metadata are often only short abbrevations.
---
### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [May 1, 2025, 11:06am UTC](https://community.mp3tag.de/t/why-are-the-results-different-from-ffprobe/68043/5 "2025-05-01T11:06:18Z")
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