# Invalid characters allowed in Tag and Filename
**URL:** https://community.mp3tag.de/t/invalid-characters-allowed-in-tag-and-filename/2739
**Category:** Support
**Created:** [January 7, 2006, 4:49pm UTC](https://community.mp3tag.de/t/invalid-characters-allowed-in-tag-and-filename/2739 "2006-01-07T16:49:42Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@smcpoland](https://community.mp3tag.de/u/smcpoland)
#### Post date: [January 7, 2006, 4:49pm UTC](https://community.mp3tag.de/t/invalid-characters-allowed-in-tag-and-filename/2739/1 "2006-01-07T16:49:42Z")
Me again, but with a real problem.
I have just purchased MusicMatch, after quite happily using WMP, needed a change...and have been struggling to get my track listings up to date.
I have finally found two albums that cause a real problem with MM in that FreeDB returns the data, MP3Tags it, and the $validate allows it to be used in Tag-\>Filename.
The specific albums are DiscID: 22120513 and 530f7d15
You will notice that the pronker who uploaded the tags did it with superscripted O's in the No (as in #).
As far as I am aware this is not quite a valid character in file names - I could be wrong - but it stops MusicMatch from recognising files dead...if this is a problem with MM then please advise by way of return so I can complain to them.
regards
Sean
---
### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [January 7, 2006, 5:30pm UTC](https://community.mp3tag.de/t/invalid-characters-allowed-in-tag-and-filename/2739/2 "2006-01-07T17:30:40Z")
> [@](#):
>
> The specific albums are DiscID: 22120513 and 530f7d15
Can you please tell be the freedb category of the albums?
Best regards,
~ Florian
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### Author:  [@smcpoland](https://community.mp3tag.de/u/smcpoland)
#### Post date: [January 7, 2006, 5:45pm UTC](https://community.mp3tag.de/t/invalid-characters-allowed-in-tag-and-filename/2739/3 "2006-01-07T17:45:45Z")
The genre (category) is X-Mas
The albums are
The All Time Greatest Christmas Songs (CD n° 1)
The All Time Greatest Christmas Songs (CD n° 2)
regards
Sean
> [@](#):
>
> Can you please tell be the freedb category of the albums?
>
> Best regards,
> ~ Florian
>
> \<{POST\_SNAPBACK}\>
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### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [January 7, 2006, 6:33pm UTC](https://community.mp3tag.de/t/invalid-characters-allowed-in-tag-and-filename/2739/4 "2006-01-07T18:33:16Z")
The ° character is perfectly valid for file/directory names in Windows. Just remove them from the directory name or request a bugfix from MM.
Best regards,
~ Florian
---
### Author:  [@twister65](https://community.mp3tag.de/u/twister65)
#### Post date: [January 10, 2006, 5:42am UTC](https://community.mp3tag.de/t/invalid-characters-allowed-in-tag-and-filename/2739/5 "2006-01-10T05:42:58Z")
I have this EXACT problem, however I've found that mp3tag is adding the extended character to the artist and song tags. Even if you simply retag the songs manually. I was puzzled why some of my mp3s weren't appearing in Musicmatch when they have in the past, and I realized it was only the ones that I retagged with mp3tag that were missing.
The character is a letter "Y" with two dots above it. I don't know if it will appear in this forum or not, but here's the character that it adds: ÿ
Scott
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### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [January 10, 2006, 8:21am UTC](https://community.mp3tag.de/t/invalid-characters-allowed-in-tag-and-filename/2739/6 "2006-01-10T08:21:02Z")
Seems like MusicMatch doesn't like ID3v2 tags stored in Unicode. Just enable Always write ISO-8859-1 instead of UTF-16 at Options \> Tags \> Mpeg and read the [Important changes](https://docs.mp3tag.de/getting-started/release-notes/#mp3tag-v233) help topic next time.
Best regards,
~ Florian
---
### Author:  [@twister65](https://community.mp3tag.de/u/twister65)
#### Post date: [January 10, 2006, 1:16pm UTC](https://community.mp3tag.de/t/invalid-characters-allowed-in-tag-and-filename/2739/7 "2006-01-10T13:16:06Z")
> [@](#):
>
> Seems like MusicMatch doesn't like ID3v2 tags stored in Unicode. Just enable Always write ISO-8859-1 instead of UTF-16 at Options \> Tags \> Mpeg and read the [Important changes](https://docs.mp3tag.de/getting-started/release-notes/#mp3tag-v233) help topic next time.
>
> Best regards,
> ~ Florian
>
> \<{POST\_SNAPBACK}\>
Thanks!
I did read the important changes before posting, but I know very little about unicode and I didn't think it applied. I understood it as being able to support extended characters when adding them to the tag, which I didn't do. So I was a little puzzled where the character came from on its own.
Thanks again,
Scott
---
### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:19pm UTC](https://community.mp3tag.de/t/invalid-characters-allowed-in-tag-and-filename/2739/8 "2026-02-09T12:19:35Z")