# Extract part of Filename and Compare To Title
**URL:** https://community.mp3tag.de/t/extract-part-of-filename-and-compare-to-title/67235
**Category:** Support
**Created:** [January 22, 2025, 3:18am UTC](https://community.mp3tag.de/t/extract-part-of-filename-and-compare-to-title/67235 "2025-01-22T03:18:30Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@spinner410](https://community.mp3tag.de/u/spinner410)
#### Post date: [January 22, 2025, 3:18am UTC](https://community.mp3tag.de/t/extract-part-of-filename-and-compare-to-title/67235/1 "2025-01-22T03:18:30Z")
Hi there: I want to extract part of the filename and compare that value to the value in the Title field.
Basically, I want to compare everything after the first hyphen and before the file extension to the value in the Title field.
An example of my file name is:
Artist Name - Song Title.mp3
Mind you I want to be able to compare whatever comes after the hyphen and before the file extension even if it doesn't exactly match the example above.
Thanks!
---
### Author:  [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)
#### Post date: [January 22, 2025, 6:59am UTC](https://community.mp3tag.de/t/extract-part-of-filename-and-compare-to-title/67235/2 "2025-01-22T06:59:28Z")
What exactly do you want to do with `Song Title` in your example?
If you don't already have `Song Title` in the `TITLE` field, what do you want to do?
Replace the current content? Append it to the current content?
Or do you want to create a new custom column to visually compare it with TITLE?
---
### Author:  [@spinner410](https://community.mp3tag.de/u/spinner410)
#### Post date: [January 22, 2025, 12:49pm UTC](https://community.mp3tag.de/t/extract-part-of-filename-and-compare-to-title/67235/3 "2025-01-22T12:49:40Z")
I want to make sure the values match and if they don't I want to see which songs have unmatched values.
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [January 22, 2025, 1:11pm UTC](https://community.mp3tag.de/t/extract-part-of-filename-and-compare-to-title/67235/4 "2025-01-22T13:11:45Z")
You could apply a filter
`"$ifgreater($strstr($lower(%_filename%),$lower(%title%)),0,1,0)" IS "0"`
You still have to check the files as variation could appear due to characters that are OK in a TITLE but are invalid in a filename.
If you want to get a column, enter as
Value: `$ifgreater($strstr($lower(%_filename%),$lower(%title%)),0,Same,Differs)`
---
### Author:  [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)
#### Post date: [January 22, 2025, 1:18pm UTC](https://community.mp3tag.de/t/extract-part-of-filename-and-compare-to-title/67235/5 "2025-01-22T13:18:07Z")
Or you could [add an new custom column](https://docs.mp3tag.de/customization/file-list/#adding-and-removing-columns).
As name you can choose whatever you want.
As **Value** use
`$if($strcmp($regexp(%_FILENAME%,.*?- (.*),$1),%TITLE%),yes,no)`
```auto
$strcmp(x,y) compares strings x and y case-sensitively
$stricmp(x,y) compares strings x and y case-INsensitively
```
This would look like this in Mp3tag:
As always if you use regular expressions: They only work for the given example.
In your case with some text in front of a space and a hyphen and a space and some other text that will be compared with the content of TITLE.
---
### Author:  [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)
#### Post date: [January 22, 2025, 1:34pm UTC](https://community.mp3tag.de/t/extract-part-of-filename-and-compare-to-title/67235/6 "2025-01-22T13:34:25Z")
> [@ohrenkino](#):
>
> You still have to check the files as variation could appear due to characters that are OK in a TITLE but are invalid in a filename.
👍
In particular, characters such as : (colon) and ? (question mark), which frequently occur in TITLEs but are invalid in Windows filenames.
And some more:
```auto
< (less than)
> (greater than)
" (double quote)
/ (forward slash)
\ (backslash)
| (vertical bar or pipe)
* (asterisk)
```
---
### Author:  [@spinner410](https://community.mp3tag.de/u/spinner410)
#### Post date: [January 22, 2025, 5:54pm UTC](https://community.mp3tag.de/t/extract-part-of-filename-and-compare-to-title/67235/7 "2025-01-22T17:54:29Z")
> [@ohrenkino](#):
>
> `"$ifgreater($strstr($lower(%_filename%),$lower(%title%)),0,1,0)" IS "0"`
thank you this worked perfectly for my purposes. thanks again!
---
### Author:  [@spinner410](https://community.mp3tag.de/u/spinner410)
#### Post date: [January 22, 2025, 5:54pm UTC](https://community.mp3tag.de/t/extract-part-of-filename-and-compare-to-title/67235/8 "2025-01-22T17:54:46Z")
thank you! this also worked for me - i appreciate the help!
---
### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 21, 2025, 5:55pm UTC](https://community.mp3tag.de/t/extract-part-of-filename-and-compare-to-title/67235/9 "2025-02-21T17:55:39Z")
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