# Question about Regular Expressions
**URL:** https://community.mp3tag.de/t/question-about-regular-expressions/3594
**Category:** Support
**Created:** [July 26, 2006, 5:47am UTC](https://community.mp3tag.de/t/question-about-regular-expressions/3594 "2006-07-26T05:47:31Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@jasiep](https://community.mp3tag.de/u/jasiep)
#### Post date: [July 26, 2006, 5:47am UTC](https://community.mp3tag.de/t/question-about-regular-expressions/3594/1 "2006-07-26T05:47:31Z")
I am new to this program, and unfamiliar with the ways of coding the expressions, and would appreciate any help. What I need to do is replace the Album Field with the Title for all Album fields that match a certain criteria. Specifically, I need to replace the generic 'lecture' album with the title of the lecture on about 2000 files. Thanks in advance!
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### Author:  [@dano](https://community.mp3tag.de/u/dano)
#### Post date: [July 26, 2006, 7:27am UTC](https://community.mp3tag.de/t/question-about-regular-expressions/3594/2 "2006-07-26T07:27:37Z")
That's not possible with Regexp, you can't copy the content of one field to another one.
But it should work with the action type "Format value"
The basic thing would look like this:
_Action type:_ **Format value**
_Field:_ **ALBUM**
_Format string:_ **%title%**
This would require that you have only selected the files which you want to change.
You could use the filter [F3] to achieve this.
Or the format string can have a scripting:
$if($eql(%album%,lecture),%title%,%album%)
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### Author:  [@jasiep](https://community.mp3tag.de/u/jasiep)
#### Post date: [July 26, 2006, 7:30am UTC](https://community.mp3tag.de/t/question-about-regular-expressions/3594/3 "2006-07-26T07:30:16Z")
Thank you so much! That's exactly what I needed!
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:19pm UTC](https://community.mp3tag.de/t/question-about-regular-expressions/3594/4 "2026-02-09T12:19:50Z")