# Schoolboy Error
**URL:** https://community.mp3tag.de/t/schoolboy-error/17257
**Category:** Support
**Created:** [September 22, 2015, 8:25pm UTC](https://community.mp3tag.de/t/schoolboy-error/17257 "2015-09-22T20:25:35Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@auldyin](https://community.mp3tag.de/u/auldyin)
#### Post date: [September 22, 2015, 8:25pm UTC](https://community.mp3tag.de/t/schoolboy-error/17257/1 "2015-09-22T20:25:35Z")
Hi,
I ripped and tagged a bunch of files (~1000), comprising Various Artists Albums and Individual Artists Albums. In a fit of madness, I deleted the Compilation Extended Tag (1).
How do I restore this tag?
Cheers
---
### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [September 23, 2015, 4:25am UTC](https://community.mp3tag.de/t/schoolboy-error/17257/2 "2015-09-23T04:25:30Z")
Once deleted, you have to restore it manually. But perhaps you have a way to filter those files that are part of the compilation.
Then:
Select the compilation files
Press Alt-T for Extended Tags Dialogues
Click "New" button
Select "Compilation" from the list
Enter "1" in the text box
Click OK until all dialogues are closed.
Done.
---
### Author:  [@auldyin](https://community.mp3tag.de/u/auldyin)
#### Post date: [September 23, 2015, 7:56am UTC](https://community.mp3tag.de/t/schoolboy-error/17257/3 "2015-09-23T07:56:35Z")
> [@ohrenkino](#):
>
> Once deleted, you have to restore it manually. But perhaps you have a way to filter those files that are part of the compilation.
> Then:
> Select the compilation files
> Press Alt-T for Extended Tags Dialogues
> Click "New" button
> Select "Compilation" from the list
> Enter "1" in the text box
> Click OK until all dialogues are closed.
> Done.
Thanks o
Difficulty now is that on creating a Compilation Column the 1 is not shown for the Compilation (Various Artists) Albums which have been tagged with 1
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [September 23, 2015, 8:17am UTC](https://community.mp3tag.de/t/schoolboy-error/17257/4 "2015-09-23T08:17:33Z")
> [@auldyin](#):
>
> Thanks o
> Difficulty now is that on creating a Compilation Column the 1 is not shown for the Compilation (Various Artists) Albums which have been tagged with 1
For the column definition you would have to enter %compilation% for Value and for Field.
---
### Author:  [@auldyin](https://community.mp3tag.de/u/auldyin)
#### Post date: [September 23, 2015, 8:50am UTC](https://community.mp3tag.de/t/schoolboy-error/17257/5 "2015-09-23T08:50:14Z")
> [@ohrenkino](#):
>
> For the column definition you would have to enter %compilation% for Value and for Field.
Thank you ohrenkino!!!
How the hell do you remember all of these things????
Cheers
---
### Author:  [@Zerow](https://community.mp3tag.de/u/Zerow)
#### Post date: [September 23, 2015, 1:08pm UTC](https://community.mp3tag.de/t/schoolboy-error/17257/6 "2015-09-23T13:08:58Z")
> [@auldyin](#):
>
> Thank you ohrenkino!!!
> How the hell do you remember all of these things????
> Cheers
I think he is a robot from the future. And DetlevD must be a robot from the past
---
### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [September 23, 2015, 3:07pm UTC](https://community.mp3tag.de/t/schoolboy-error/17257/7 "2015-09-23T15:07:55Z")
---
### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:25pm UTC](https://community.mp3tag.de/t/schoolboy-error/17257/8 "2026-02-09T12:25:53Z")