# How to insert text into existing tags?

**URL:** <https://community.mp3tag.de/t/how-to-insert-text-into-existing-tags/18454>\
**Category:** Support\
**Created:** [November 25, 2016, 10:47pm UTC](https://community.mp3tag.de/t/how-to-insert-text-into-existing-tags/18454 "2016-11-25T22:47:05Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![wallywalters](https://community.mp3tag.de/user_avatar/community.mp3tag.de/wallywalters/32/5730_2.png) [@wallywalters](https://community.mp3tag.de/u/wallywalters)\
**Post date:** [November 25, 2016, 10:47pm UTC](https://community.mp3tag.de/t/how-to-insert-text-into-existing-tags/18454/1 "2016-11-25T22:47:05Z")

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I have a number of tracks where the ALBUM tag is in the format

> CD 01 The Beach Boys CD 02 The Beatles CD 03 Ray Charles

and so on. How can I use Actions to make MP3Tag insert, say, a colon character after the CD number, so the tags instead read

> CD 01: The Beach Boys CD 02: The Beatles CD 03: Ray Charles

Thanks.

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**Author:** ![ohrenkino](https://community.mp3tag.de/user_avatar/community.mp3tag.de/ohrenkino/32/4843_2.png) [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)\
**Post date:** [November 26, 2016, 8:29am UTC](https://community.mp3tag.de/t/how-to-insert-text-into-existing-tags/18454/2 "2016-11-26T08:29:48Z")

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Create an action of the type "Replace with regular expression" for ALBUM  
Search string: CD (\d+) (.\*)  
Replace String: CD $1: $2)

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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, 12:26pm UTC](https://community.mp3tag.de/t/how-to-insert-text-into-existing-tags/18454/3 "2026-02-09T12:26:32Z")

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