# \[X\] Different audio md5 calculated for two files diffreing by tags only

**URL:** https://community.mp3tag.de/t/x-different-audio-md5-calculated-for-two-files-diffreing-by-tags-only/13808
**Category:** No Bugs
**Created:** [August 28, 2012, 4:33pm UTC](https://community.mp3tag.de/t/x-different-audio-md5-calculated-for-two-files-diffreing-by-tags-only/13808 "2012-08-28T16:33:10Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![zencd](https://community.mp3tag.de/user_avatar/community.mp3tag.de/zencd/32/88_2.png) [@zencd](https://community.mp3tag.de/u/zencd)
#### Post date: [August 28, 2012, 4:33pm UTC](https://community.mp3tag.de/t/x-different-audio-md5-calculated-for-two-files-diffreing-by-tags-only/13808/1 "2012-08-28T16:33:10Z")

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After I tagged a mp3 file with an external tool (Mutagen) the mp3tag started to calculate a different audio md5 for it.

Examples that differs:  
[https://dl.dropbox.com/u/1883230/tmp/mp3tag/original.mp3](https://dl.dropbox.com/u/1883230/tmp/mp3tag/original.mp3) (ID3v1+ID3v2.4)  
[https://dl.dropbox.com/u/1883230/tmp/mp3tag...agen-tagged.mp3](https://dl.dropbox.com/u/1883230/tmp/mp3tag/mutagen-tagged.mp3) (ID3v2.4+APEv2)

Hash sums:  
0CB9CBEBB7C5C2EE899E8C11B6CBF5B8 mutagen-tagged.mp3  
FE7544E6F41D34A00D6B616DC418CCF9 original.mp3

Foobar2000 shows they are equal by audio data.  
I decoded them to wav's with lame and they were bit-to-bit equal.

MP3Tag v2.52, Windos 7 32 bit

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<div class="post-metadata">

### Author: ![dano](https://community.mp3tag.de/user_avatar/community.mp3tag.de/dano/32/6_2.png) [@dano](https://community.mp3tag.de/u/dano)
#### Post date: [August 28, 2012, 4:57pm UTC](https://community.mp3tag.de/t/x-different-audio-md5-calculated-for-two-files-diffreing-by-tags-only/13808/2 "2012-08-28T16:57:47Z")

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The problem is the tool puts the APEv2 tag after the ID3v1 tag so Mp3tag cannot find the ID3v1 tag.

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<div class="post-metadata">

### Author: ![zencd](https://community.mp3tag.de/user_avatar/community.mp3tag.de/zencd/32/88_2.png) [@zencd](https://community.mp3tag.de/u/zencd)
#### Post date: [August 29, 2012, 1:19am UTC](https://community.mp3tag.de/t/x-different-audio-md5-calculated-for-two-files-diffreing-by-tags-only/13808/3 "2012-08-29T01:19:37Z")

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Yes, the fault is Mutagen's. Sorry.

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<div class="post-metadata">

### Author: ![Florian](https://community.mp3tag.de/user_avatar/community.mp3tag.de/florian/32/5759_2.png) [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [December 28, 2018, 2:32pm UTC](https://community.mp3tag.de/t/x-different-audio-md5-calculated-for-two-files-diffreing-by-tags-only/13808/4 "2018-12-28T14:32:09Z")

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