# \[F\] mp4 tag problem with Android
**URL:** https://community.mp3tag.de/t/f-mp4-tag-problem-with-android/10108
**Category:** Fixed Bugs
**Tags:** bug-fixed
**Created:** [March 15, 2010, 1:32pm UTC](https://community.mp3tag.de/t/f-mp4-tag-problem-with-android/10108 "2010-03-15T13:32:48Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@noda](https://community.mp3tag.de/u/noda)
#### Post date: [March 15, 2010, 1:32pm UTC](https://community.mp3tag.de/t/f-mp4-tag-problem-with-android/10108/1 "2010-03-15T13:32:48Z")
Hello
I'm using mp3tag (always latest dev version, 2.46 currently) in my digital import process (EAC-\>M4A (AAC) using iTunesEncode) to tag all my aac/mp4 library, but it seems there is some problem with the mp4 tags written by mp3tag with Android (the mobile OS):
- taking a cleanly converted WAV-\>M4A by itunes and tagging it with mp3tag, the tags are not read at all by android.
- opening this file in itunes shows correct information, letting itunes rewrite the tag by changing a flied (for example the compositor field) makes the file works perfectly on android.
- If I rewrite the tag again in mp3tag, the tags become unreadable to android again.
It seems there's definitely something with the way mp3tag handle the mp4 tags, unfortunately, I can't provide much more informations on this :-/
Thank you for your wonderful program, BTW.
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### Author:  [@Sabio](https://community.mp3tag.de/u/Sabio)
#### Post date: [March 15, 2010, 7:08pm UTC](https://community.mp3tag.de/t/f-mp4-tag-problem-with-android/10108/2 "2010-03-15T19:08:06Z")
You could upload two versions of the same track ("after Mp3tag" and "after iTunes") say to [drop.io](http://drop.io) and post the link here.
Then there should be enough details for the problem analysis.
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### Author:  [@noda](https://community.mp3tag.de/u/noda)
#### Post date: [March 15, 2010, 10:02pm UTC](https://community.mp3tag.de/t/f-mp4-tag-problem-with-android/10108/3 "2010-03-15T22:02:07Z")
Here you are:
_link removed_
The first file is the one just passed through mp3tag after the extraction.
The second file was then went through itunes and has some tags modified then reverted to force rewrite of the mp4 tags.
Hope it will help!
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### Author:  [@dano](https://community.mp3tag.de/u/dano)
#### Post date: [March 16, 2010, 7:49am UTC](https://community.mp3tag.de/t/f-mp4-tag-problem-with-android/10108/4 "2010-03-16T07:49:11Z")
Can you try that:
Open "View \> Extended Tags" on the mp3tag file and delete
Totaldiscs and Discnumber tags in one go.
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### Author:  [@noda](https://community.mp3tag.de/u/noda)
#### Post date: [March 16, 2010, 3:57pm UTC](https://community.mp3tag.de/t/f-mp4-tag-problem-with-android/10108/5 "2010-03-16T15:57:21Z")
Removing those tags makes Android read the tags correctly. But then, why the iTunes file that also have these tags is correctly read on Android?
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### Author:  [@dano](https://community.mp3tag.de/u/dano)
#### Post date: [March 16, 2010, 6:31pm UTC](https://community.mp3tag.de/t/f-mp4-tag-problem-with-android/10108/6 "2010-03-16T18:31:00Z")
Mp3tag currently writes that field in a slightly different way.
It will probably get fixed.
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### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [March 16, 2010, 8:39pm UTC](https://community.mp3tag.de/t/f-mp4-tag-problem-with-android/10108/7 "2010-03-16T20:39:21Z")
noda, can you please try this unofficial version: [http://download.mp3tag.de/support/F053FDBC...agv246setup.exe](http://download.mp3tag.de/support/F053FDBC-CEAB-43FD-946F-F559D6924601/mp3tagv246setup.exe)
Thanks dano for spotting the detail!
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### Author:  [@noda](https://community.mp3tag.de/u/noda)
#### Post date: [March 17, 2010, 4:51pm UTC](https://community.mp3tag.de/t/f-mp4-tag-problem-with-android/10108/8 "2010-03-17T16:51:03Z")
With this version, it's perfect on Android without using iTunes, thanks for being so fast fixing this issue!
I hope your modifications will be added to next official version 🙂
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### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [March 20, 2010, 6:55am UTC](https://community.mp3tag.de/t/f-mp4-tag-problem-with-android/10108/9 "2010-03-20T06:55:27Z")
Yes, it's now added to Mp3tag v2.46a.
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### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [December 28, 2018, 2:04pm UTC](https://community.mp3tag.de/t/f-mp4-tag-problem-with-android/10108/10 "2018-12-28T14:04:44Z")
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