# Extract catalogue number from album field

**URL:** https://community.mp3tag.de/t/extract-catalogue-number-from-album-field/45099
**Category:** Support
**Created:** [April 10, 2019, 9:41pm UTC](https://community.mp3tag.de/t/extract-catalogue-number-from-album-field/45099 "2019-04-10T21:41:08Z")
**Posts on this page:** 1
**Showing post:** 4

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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: [April 11, 2019, 9:21am UTC](https://community.mp3tag.de/t/extract-catalogue-number-from-album-field/45099/4 "2019-04-11T09:21:43Z")

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It the data

> [@Regular Expressions](https://community.mp3tag.de/t/regular-expressions/521/63):
>
> [BT 03] - 1995 - Spikey Trance.

can be found in ALBUM, then the it is  
Source: %album%  
Target: `[%catalog #%] - %album%`  
and probably  
Target: `[%catalog #%] - %year% - %album%`

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