# using Action button , rename filenames ?
**URL:** https://community.mp3tag.de/t/using-action-button-rename-filenames/4421
**Category:** Support
**Created:** [February 4, 2007, 9:51am UTC](https://community.mp3tag.de/t/using-action-button-rename-filenames/4421 "2007-02-04T09:51:48Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@dunken](https://community.mp3tag.de/u/dunken)
#### Post date: [February 4, 2007, 9:51am UTC](https://community.mp3tag.de/t/using-action-button-rename-filenames/4421/1 "2007-02-04T09:51:48Z")
Did discover
^\s\*[0-9]+\s\*-\s\*
But ive got some filenames that he wont rename
202\_rihanna-sos.mp3
112\_housefeller\_feat\_christine\_moore-mama.mp3
08\_we\_could\_be\_hereos\_-\_b.w.o-pt2k4.mp3
for example ?
Anyone that can give a hint why he dosent rename those filenames?
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### Author:  [@dano](https://community.mp3tag.de/u/dano)
#### Post date: [February 4, 2007, 2:00pm UTC](https://community.mp3tag.de/t/using-action-button-rename-filenames/4421/2 "2007-02-04T14:00:31Z")
It doesn't work because you have an underscore after the digits and no minus.
You can use ^\s\*[0-9]+\s\*[-\_]\s\*
to allow both signs.
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### Author:  [@dunken](https://community.mp3tag.de/u/dunken)
#### Post date: [February 4, 2007, 2:02pm UTC](https://community.mp3tag.de/t/using-action-button-rename-filenames/4421/3 "2007-02-04T14:02:23Z")
'
Okie , ill try that , 😃
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:20pm UTC](https://community.mp3tag.de/t/using-action-button-rename-filenames/4421/4 "2026-02-09T12:20:08Z")