# Backup copy of changes to music files

**URL:** https://community.mp3tag.de/t/backup-copy-of-changes-to-music-files/54848
**Category:** General Discussion
**Created:** [October 22, 2021, 1:25am UTC](https://community.mp3tag.de/t/backup-copy-of-changes-to-music-files/54848 "2021-10-22T01:25:44Z")
**Posts on this page:** 1
**Showing post:** 2

<div class="post-metadata">

### Author: ![LyricsLover](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/l/c6cbf5/32.png) [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)
#### Post date: [October 22, 2021, 7:00am UTC](https://community.mp3tag.de/t/backup-copy-of-changes-to-music-files/54848/2 "2021-10-22T07:00:31Z")

</div>

I use the built-in (windows) [robocopy.exe](https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/robocopy) to backup my music files.

Thanks to the "last modified" date for every metadata change (Mp3tag -\> File -\> Options -\> Tags -\> **"Preserve file modification time when saving tags"** UNCHECKED) `robocopy.exe` detects every change I have made and copy such files to my external hard drives and NAS.  
Every unchanged file will not be transferred.

With this basic form of "incremental backup", you are sure that you have a 1:1 master copy without the need to restore several different smaller incremental backup parts.

---

_[View the full topic](https://community.mp3tag.de/t/backup-copy-of-changes-to-music-files/54848)._