# UNC limitation with export config?
**URL:** https://community.mp3tag.de/t/unc-limitation-with-export-config/70675
**Category:** Support
**Created:** [February 13, 2026, 7:16am UTC](https://community.mp3tag.de/t/unc-limitation-with-export-config/70675 "2026-02-13T07:16:18Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@rmftc](https://community.mp3tag.de/u/rmftc)
#### Post date: [February 13, 2026, 7:16am UTC](https://community.mp3tag.de/t/unc-limitation-with-export-config/70675/1 "2026-02-13T07:16:18Z")
Environment
- Windows 11
- Mp3tag 3.33 (64-bit) Jan 22 2026 09:44:14
- NAS: Synology DS1819 via SMB
Issue
Exporting to a UNC path causes Mp3tag to write a literal "\t" (bytes 5C 74) instead of a TAB (09) when using $char(9).
Exporting to a local path or to a mapped network drive works as expected.
Export configuration (single line)
$filename(,utf-8)Dateiname$char(9)WWW$char(13)$char(10)$loop(%\_path%)%\_filename\_ext%$char(9)%www%$char(13)$char(10)$loopend()
Steps to reproduce
1. Load MP3 files in Mp3tag (Ctrl+A to select all)
2. Export using the configuration above, changing only OUTPUTPATH:
A) Local: C:\Temp\mp3tag\_bugreport\mp3\_www.tsv -\> OK
B) Mapped: S:\_\_kv\mp3tag\_exports\mp3\_www.tsv -\> OK
C) UNC: \DS1819\Songs\_\_kv\mp3tag\_exports\mp3\_www.tsv -\> NOT OK
3. Do NOT open the output file after export
4. Verify with PowerShell: Format-Hex -Path -Count 120
Expected result
- TAB byte 09 between columns for all output paths.
Actual result
- Local path: TAB works (file shows separate columns).
- Mapped drive: TAB works (file shows separate columns).
- UNC path: output contains literal backslash+t (5C 74) between columns.
Hex evidence (UNC output)
0000000000000000 ... 44 61 74 65 69 6E 61 6D 65 5C 74 57 57 57 ... (Dateiname\tWWW)
... later: ... 2E 6D 70 33 5C 74 68 74 74 70 73 ... (...mp3\thttps...)
Notes
- Same NAS share via mapped drive works; only the UNC form fails.
- Not tested with latest development build yet. (Can test if needed.)
---
### Author:  [@rmftc](https://community.mp3tag.de/u/rmftc)
#### Post date: [February 13, 2026, 7:25am UTC](https://community.mp3tag.de/t/unc-limitation-with-export-config/70675/2 "2026-02-13T07:25:25Z")
Here the hex code of Output on locally mapped NAS Path (which is good!)
Label: Z:\_\_kv\mp3tag\_exports\mp3\_www\_mapped\_drive.tsv
```auto
Offset Bytes Ascii
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
------ ----------------------------------------------- -----
```
0000000000000000 EF BB BF 0D 0A 44 61 74 65 69 6E 61 6D 65 09 57 ��Dateiname�W
0000000000000010 57 57 0D 0A 0D 0A 56 61 6E 5F 4D 63 43 6F 79 5F WW����Van\_McCoy\_
0000000000000020 54 68 65 5F 48 75 73 74 6C 65 28 43 75 73 74 6F The\_Hustle(Custo
0000000000000030 6D 5F 42 61 63 6B 69 6E 67 5F 54 72 61 63 6B 29 m\_Backing\_Track)
0000000000000040 2E 6D 70 33 **09** 68 74 74 70 73 3A 2F 2F 77 77 77 .mp3 **�** [https://www](https://www)
0000000000000050 2E 6B 61 72 61 6F 6B 65 2D 76 65 72 73 69 6F 6E .karaoke-version
0000000000000060 2E 63 6F 6D 2F 63 75 73 74 6F 6D 62 61 63 6B 69 .com/custombacki
0000000000000070 6E 67 74 72 61 63 6B 2F ngtrack/
---
### Author:  [@rmftc](https://community.mp3tag.de/u/rmftc)
#### Post date: [February 13, 2026, 7:28am UTC](https://community.mp3tag.de/t/unc-limitation-with-export-config/70675/3 "2026-02-13T07:28:49Z")
```auto
Update: Verified with PowerShell Format-Hex:
- UNC path (\\DS1819\...) -> bytes 5C 74 between columns (literal "\t")
- Mapped drive (Z:\...) -> byte 09 between columns (real TAB)
- Local (C:\Temp\...) -> byte 09 between columns (real TAB)
Same export config with $char(9); only output path differs.
```
---
### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [February 13, 2026, 8:27am UTC](https://community.mp3tag.de/t/unc-limitation-with-export-config/70675/4 "2026-02-13T08:27:20Z")
I just created an export file on my Fritzbox with the sample script - and the tab character appears like expected:
This is what the export script looks like:
The export path was like this:
---
### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [March 17, 2026, 5:13pm UTC](https://community.mp3tag.de/t/unc-limitation-with-export-config/70675/6 "2026-03-17T17:13:14Z")
I've moved this to #Support now, it's unclear if this issue is still present for the OP.
---
### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [March 18, 2026, 7:39am UTC](https://community.mp3tag.de/t/unc-limitation-with-export-config/70675/8 "2026-03-18T07:39:20Z")
> [@rmftc](#):
>
> Exporting to a UNC path causes Mp3tag to write a literal "\t" (bytes 5C 74) instead of a TAB (09) when using $char(9).
I've just tried to reproduce this too, and it correctly writes a TAB `0x09`
---
### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [March 27, 2026, 7:08am UTC](https://community.mp3tag.de/t/unc-limitation-with-export-config/70675/9 "2026-03-27T07:08:04Z")
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