# In Actions what to use for separation?
**URL:** https://community.mp3tag.de/t/in-actions-what-to-use-for-separation/2914
**Category:** Support
**Created:** [February 17, 2006, 2:58pm UTC](https://community.mp3tag.de/t/in-actions-what-to-use-for-separation/2914 "2006-02-17T14:58:53Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Dolphine](https://community.mp3tag.de/u/Dolphine)
#### Post date: [February 17, 2006, 2:58pm UTC](https://community.mp3tag.de/t/in-actions-what-to-use-for-separation/2914/1 "2006-02-17T14:58:53Z")
eg. case conversion -
words begin from/after any of:
do we use ; or : or , to separate? I'm not sure!
eg DJ, MC, etc ?
thanks
also one other thing.....
How Do I get words where there is eg S.O.S to remain like that? Currently for title and artist field I have case conversion set to "Mixed Case" so S.O.S becomes S.o.s. How can I get a query that will ignore an letter before a "."? I wanted mixed case for all other regular words in both title and artists field - but when there are dots - I want the case conversion to ignore this.
thanks again
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### Author:  [@Logan](https://community.mp3tag.de/u/Logan)
#### Post date: [February 17, 2006, 3:27pm UTC](https://community.mp3tag.de/t/in-actions-what-to-use-for-separation/2914/2 "2006-02-17T15:27:18Z")
Here's what I use, I think it does what you're looking for:
#1: does the conversion, has a list of characters to ignore for the case
#2-8: converts the file extension back to lower case (there is probably a regular expression to do this, but I suck at them)
#9: converts roman numerals to upper
Note: I also have another action set that converts terms like DJ, MC, PvD back to the case format I want them in.
Thanks to dano for the Roman Numeral expression and to Sebastion for his MTA converter.
Action #1:
_Action type:_ **Case conversion**
_Field:_ **\_ALL**
_Case conversion:_ **Mixed Case**
_Words begin from/after any of:_ **( , [,] , ) , . , &,-,/,,.,"**
Action #2:
_Action type:_ **Replace**
_Field:_ **\_FILENAME**
_Original:_ **aac**
_Replace with:_ **aac**
[x] only as whole word
[] case-sensitive comparison
Action #3:
_Action type:_ **Replace**
_Field:_ **\_FILENAME**
_Original:_ **m4a**
_Replace with:_ **m4a**
[x] only as whole word
[] case-sensitive comparison
Action #4:
_Action type:_ **Replace**
_Field:_ **\_FILENAME**
_Original:_ **m4p**
_Replace with:_ **m4p**
[x] only as whole word
[] case-sensitive comparison
Action #5:
_Action type:_ **Replace**
_Field:_ **\_FILENAME**
_Original:_ **mp3**
_Replace with:_ **mp3**
[x] only as whole word
[] case-sensitive comparison
Action #6:
_Action type:_ **Replace**
_Field:_ **\_FILENAME**
_Original:_ **mp4**
_Replace with:_ **mp4**
[x] only as whole word
[] case-sensitive comparison
Action #7:
_Action type:_ **Replace**
_Field:_ **CONTENTGROUP**
_Original:_ **.aac**
_Replace with:_ **.aac**
[] only as whole word
[] case-sensitive comparison
Action #8:
_Action type:_ **Replace**
_Field:_ **CONTENTGROUP**
_Original:_ **.mp3**
_Replace with:_ **.mp3**
[] only as whole word
[] case-sensitive comparison
Action #9:
_Action type:_ **Replace with regular expressions**
_Field:_ **\_ALL**
_Regular expression:_ **(^|\W)(?:M{0,3})(?:D?C{0,3}|C[DM])(?:L?X{0,3}|X[LC])(?:V?I{0,3}|I[VX])(?=(.\s|\s|)|$))**
_Replace matches with:_ **$upper($0)**
[] case-sensitive comparison
---
### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:19pm UTC](https://community.mp3tag.de/t/in-actions-what-to-use-for-separation/2914/3 "2026-02-09T12:19:38Z")