# Howto **URL:** https://community.mp3tag.de/c/howto/30.md [Latest](https://community.mp3tag.de/latest.md) · [Categories](https://community.mp3tag.de/categories.md) · [Tags](https://community.mp3tag.de/tags.md) --- ## [How to check files for errors?](https://community.mp3tag.de/t/how-to-check-files-for-errors/44633)
**Author:** [@Florian](https://community.mp3tag.de/u/Florian)\ **Replies:** 1\ **Last updated:** [February 3, 2022, 4:29pm UTC](https://community.mp3tag.de/t/how-to-check-files-for-errors/44633 "2022-02-03T16:29:35Z")
It’s required and often helps to reduce support cycles to check files for errors before filing a bug report. Symptoms of erroneous files are often missing or wrong bitrate or length audible blips or skips tags seem to… --- ## [About the Howto category](https://community.mp3tag.de/t/about-the-howto-category/40749)
**Author:** [@Florian](https://community.mp3tag.de/u/Florian)\ **Replies:** 0\ **Last updated:** [February 12, 2018, 8:14am UTC](https://community.mp3tag.de/t/about-the-howto-category/40749 "2018-02-12T08:14:32Z")
Learn all about the powerful features of Mp3tag and read answers to the FAQs. Topics in this category may only be created by trust level 2 and up. --- ## [Filter expressions](https://community.mp3tag.de/t/filter-expressions/10080)
**Author:** [@dano](https://community.mp3tag.de/u/dano)\ **Replies:** 4\ **Last updated:** [December 6, 2010, 9:24am UTC](https://community.mp3tag.de/t/filter-expressions/10080 "2010-12-06T09:24:12Z")
This topic collects useful Filter expressions If you have a useful filter expression, please post it here and give a short description of what it does. These filter expressions can be used with the Mp3tag filter \[F3\]. P… --- ## [Problems with ID3v2 tags in Unicode format?](https://community.mp3tag.de/t/problems-with-id3v2-tags-in-unicode-format/2785)
**Author:** [@Florian](https://community.mp3tag.de/u/Florian)\ **Replies:** 0\ **Last updated:** [January 15, 2006, 8:03pm UTC](https://community.mp3tag.de/t/problems-with-id3v2-tags-in-unicode-format/2785 "2006-01-15T20:03:45Z")
Since version 2.33 Mp3tag supports Unicode through the whole program. Mp3tag writes ID3v2 tags in Unicode format (UTF-16) by default now, but there are still some programs, portables or car radios which have problems wit… --- ## [Web Sources Archive](https://community.mp3tag.de/t/web-sources-archive/1681)
**Author:** [@Florian](https://community.mp3tag.de/u/Florian)\ **Replies:** 0\ **Last updated:** [February 7, 2005, 6:31pm UTC](https://community.mp3tag.de/t/web-sources-archive/1681 "2005-02-07T18:31:09Z")
The Web Sources Framework is used in Tag Sources for importing tags and cover art from online databases. Mp3tag currently includes the following built-in Tag Sources Discogs Discogs Artist + Album Discogs Artist + Tit… --- ## [Export Configuration Archive](https://community.mp3tag.de/t/export-configuration-archive/1495)
**Author:** [@Florian](https://community.mp3tag.de/u/Florian)\ **Replies:** 0\ **Last updated:** [December 4, 2004, 6:14pm UTC](https://community.mp3tag.de/t/export-configuration-archive/1495 "2004-12-04T18:14:04Z")
This is the official list of export configurations submitted by users of Mp3tag. Please note, that some of them are in german, others are in english. Feel free to post about your creative works with Mp3tag's export featu… --- ## [Regular Expressions](https://community.mp3tag.de/t/regular-expressions/521)
**Author:** [@Florian](https://community.mp3tag.de/u/Florian)\ **Replies:** 64\ **Last updated:** [December 12, 2020, 11:54am UTC](https://community.mp3tag.de/t/regular-expressions/521 "2020-12-12T11:54:34Z")
This topic collects some useful regular expressions. If you created a regular expression which solves a common task, please post it here and give a short description what it is supposed to do. These regular expressions … --- ## [Multiple field values and replacing the double backslash \\\\](https://community.mp3tag.de/t/multiple-field-values-and-replacing-the-double-backslash/71455)
**Author:** [@Florian](https://community.mp3tag.de/u/Florian)\ **Replies:** 0\ **Last updated:** [June 18, 2026, 3:00pm UTC](https://community.mp3tag.de/t/multiple-field-values-and-replacing-the-double-backslash/71455 "2026-06-18T15:00:58Z")
The double backslash \\\\ is Mp3tag's way of visually denoting multiple values for the same field. For example, Peter Gabriel\\\\Kate Bush in the ARTIST field indicates that there are two separate ARTIST values: Peter Gabrie… --- ## [Mp3tag on Linux via Wine](https://community.mp3tag.de/t/mp3tag-on-linux-via-wine/71343)
**Author:** [@Casual\_Tea](https://community.mp3tag.de/u/Casual_Tea)\ **Replies:** 0\ **Last updated:** [May 24, 2026, 1:28pm UTC](https://community.mp3tag.de/t/mp3tag-on-linux-via-wine/71343 "2026-05-24T13:28:23Z")
Installing locally via Package Manager on Arch-based Distros Community Package (unofficial) Install via paru -S mp3tag, octopi, yay etc. As I don't use this approach personally, you'd have to ask the maintainers of the… --- ## [MP4/M4A/M4B: iTunes/QuickTime and Nero metadata](https://community.mp3tag.de/t/mp4-m4a-m4b-itunes-quicktime-and-nero-metadata/69341)
**Author:** [@Florian](https://community.mp3tag.de/u/Florian)\ **Replies:** 0\ **Last updated:** [August 7, 2025, 3:26pm UTC](https://community.mp3tag.de/t/mp4-m4a-m4b-itunes-quicktime-and-nero-metadata/69341 "2025-08-07T15:26:07Z")
Mp3tag supports two tag formats for MP4/M4A/M4B: iTunes/QuickTime and Nero metadata. When writing metadata, Mp3tag tries to only use iTunes/QuickTime metadata if possible, but writes Nero metadata in the following circu… --- ## [Add custom user-defined Genres](https://community.mp3tag.de/t/add-custom-user-defined-genres/61122)
**Author:** [@Florian](https://community.mp3tag.de/u/Florian)\ **Replies:** 0\ **Last updated:** [May 30, 2023, 3:14pm UTC](https://community.mp3tag.de/t/add-custom-user-defined-genres/61122 "2023-05-30T15:14:44Z")
Add and Edit user-defined Genres via Custom List Values Every field on the Tag Panel can have custom values added to its drop-down list. These can be customized via Options → Tag Panel and the Genre field is no exception… --- ## [Installation & Backup](https://community.mp3tag.de/t/installation-backup/964)
**Author:** [@Florian](https://community.mp3tag.de/u/Florian)\ **Replies:** 4\ **Last updated:** [October 14, 2023, 8:01pm UTC](https://community.mp3tag.de/t/installation-backup/964 "2023-10-14T20:01:03Z")
Can I keep my settings when updating to a new version? Can I backup my settings or use them on a different computer? How to build a portable installation of Mp3tag? Cannot write configuration file Right-cli… --- ## [Display the Sample Rate Column in kHz](https://community.mp3tag.de/t/display-the-sample-rate-column-in-khz/60240)
**Author:** [@MotleyG](https://community.mp3tag.de/u/MotleyG)\ **Replies:** 0\ **Last updated:** [March 1, 2023, 6:57pm UTC](https://community.mp3tag.de/t/display-the-sample-rate-column-in-khz/60240 "2023-03-01T18:57:33Z")
Sharing my value for the Sample Rate column I use in mp3tag. $div(%\_samplerate%,1000)$ifgreater($mod(%\_samplerate%,1000),0,.$left($mod(%\_samplerate%,1000),1),)kHz Displays as 44.1kHz, 48kHz, 88.2kHz, 96kHz etc. --- ## [User-defined tool for Cover Lookup](https://community.mp3tag.de/t/user-defined-tool-for-cover-lookup/59761)
**Author:** [@Casual\_Tea](https://community.mp3tag.de/u/Casual_Tea)\ **Replies:** 1\ **Last updated:** [January 22, 2023, 11:40am UTC](https://community.mp3tag.de/t/user-defined-tool-for-cover-lookup/59761 "2023-01-22T11:40:44Z")
I use this tool to quickly look for album art on this site which (in my experience) yields the best overall results and has better performance than AlbumArtDownloader for example. This is the latest version (2025/01/30)… --- ## [User-defined Tools](https://community.mp3tag.de/t/user-defined-tools/966)
**Author:** [@dano](https://community.mp3tag.de/u/dano)\ **Replies:** 6\ **Last updated:** [February 6, 2022, 7:55am UTC](https://community.mp3tag.de/t/user-defined-tools/966 "2022-02-06T07:55:14Z")
General information on user-defined Tools in Mp3tag Examples Open files in Windows Explorer Play/Enqueue files in Winamp Web Browser Folder Navigation Re-encode WAV using ffmpeg --- ## [Freedb and Web Sources](https://community.mp3tag.de/t/freedb-and-web-sources/2748)
**Author:** [@Florian](https://community.mp3tag.de/u/Florian)\ **Replies:** 4\ **Last updated:** [March 15, 2021, 5:38pm UTC](https://community.mp3tag.de/t/freedb-and-web-sources/2748 "2021-03-15T17:38:08Z")
How to resolve connection issues to freedb or Web Sources? How to use a \*.src web source file? How to find the configuration folder? Discogs is reporting a 401 error --- ## [Actions and batch-operations](https://community.mp3tag.de/t/actions-and-batch-operations/967)
**Author:** [@dano](https://community.mp3tag.de/u/dano)\ **Replies:** 15\ **Last updated:** [January 23, 2021, 6:44pm UTC](https://community.mp3tag.de/t/actions-and-batch-operations/967 "2021-01-23T18:44:23Z")
Mp3tag provides a variety of actions, which can be applied to filenames and tags. The actions are grouped together into named sets (action groups), which can be applied independently via Alt + 6. If you do not want to cr… --- ## [How to export cover art to directory structure](https://community.mp3tag.de/t/how-to-export-cover-art-to-directory-structure/47037)
**Author:** [@Florian](https://community.mp3tag.de/u/Florian)\ **Replies:** 0\ **Last updated:** [November 13, 2019, 8:34am UTC](https://community.mp3tag.de/t/how-to-export-cover-art-to-directory-structure/47037 "2019-11-13T08:34:09Z")
A user on Twitter asks I want to export my whole library CD covers to a folder in which my library folder architecture will be preserved : i don't want to end up with all CD covers mixed in a single folder. I made sear… --- ## [Converters to rename files or to import tags](https://community.mp3tag.de/t/converters-to-rename-files-or-to-import-tags/8016)
**Author:** [@Florian](https://community.mp3tag.de/u/Florian)\ **Replies:** 2\ **Last updated:** [February 28, 2009, 12:17pm UTC](https://community.mp3tag.de/t/converters-to-rename-files-or-to-import-tags/8016 "2009-02-28T12:17:18Z")
Mp3tag provides a variety of possibilities to get tag information from parts of the filename or rename files based on the information stored in the tag of a file. The base concept behind all converters in Mp3tag is the … --- ## [Tags and editing of metadata](https://community.mp3tag.de/t/tags-and-editing-of-metadata/965)
**Author:** [@Sebastian\_Mares](https://community.mp3tag.de/u/Sebastian_Mares)\ **Replies:** 9\ **Last updated:** [August 3, 2004, 11:17am UTC](https://community.mp3tag.de/t/tags-and-editing-of-metadata/965 "2004-08-03T11:17:50Z")
Which tag fields are supported by Mp3tag? Which tag types are supported by Mp3tag? How to edit single tag fields? How to remove single tag fields? How to copy whole tags to other files? Why does it take … --- ## [Mp3tag for macOS or Linux](https://community.mp3tag.de/t/mp3tag-for-macos-or-linux/9889)
**Author:** [@Florian](https://community.mp3tag.de/u/Florian)\ **Replies:** 0\ **Last updated:** [February 14, 2010, 7:44am UTC](https://community.mp3tag.de/t/mp3tag-for-macos-or-linux/9889 "2010-02-14T07:44:38Z")
Mp3tag on macOS See https://community.mp3tag.de/t/mp3tag-for-mac-is-here/52021 Mp3tag on Linux On Linux you can simply install Wine (or compile the latest version yourself). If something stops working for you, just drop…