# Upper and lower cases

**URL:** https://community.mp3tag.de/t/upper-and-lower-cases/2596
**Category:** Support
**Created:** [December 7, 2005, 5:25pm UTC](https://community.mp3tag.de/t/upper-and-lower-cases/2596 "2005-12-07T17:25:39Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![Altec](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/a/ee7513/32.png) [@Altec](https://community.mp3tag.de/u/Altec)
#### Post date: [December 7, 2005, 5:25pm UTC](https://community.mp3tag.de/t/upper-and-lower-cases/2596/1 "2005-12-07T17:25:39Z")

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I wonder if there is a way to change following filename:

007 MS. JACKSON OutKast.mp3

into  
Track: 007  
Title: Ms. Jackson  
Artist: OutKast

by changing the file name into:

007 - Ms. Jackson - OutKast.mp3

Many thanks!

Off course the file name can be more complicated like:  
013 ETERNAL FLAME Atomic Kitten.mp3

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### Author: ![nickless](https://community.mp3tag.de/user_avatar/community.mp3tag.de/nickless/32/36_2.png) [@nickless](https://community.mp3tag.de/u/nickless)
#### Post date: [December 7, 2005, 6:29pm UTC](https://community.mp3tag.de/t/upper-and-lower-cases/2596/2 "2005-12-07T18:29:55Z")

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Hi Altec!

Create a new Action group with 2 Actions:

#1:  
Action type: Replace with regular expressions  
Field: \_FILENAME  
Regular expression: ^(\d+) ([^a-z]+) ([A-Z][a-z].\*)$  
Replace with: $1 - $caps($2) - $3  
[X] case-sensitive

#2:  
Action type: Import Tag-fields  
Sourcestring: %\_filename%  
Formatstring: %track% - %title% - %artist%

Regards  
nickless

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### Author: ![Altec](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/a/ee7513/32.png) [@Altec](https://community.mp3tag.de/u/Altec)
#### Post date: [December 7, 2005, 7:11pm UTC](https://community.mp3tag.de/t/upper-and-lower-cases/2596/3 "2005-12-07T19:11:59Z")

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Thank you so much!! 😆

/Altec

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### Author: ![system](https://community.mp3tag.de/uploads/default/original/2X/c/ce7035d426cb755a7916793326d23b465222a407.png) [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:19pm UTC](https://community.mp3tag.de/t/upper-and-lower-cases/2596/4 "2026-02-09T12:19:33Z")

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