# File properties vs MP3TAG name
**URL:** https://community.mp3tag.de/t/file-properties-vs-mp3tag-name/43630
**Category:** General Discussion
**Created:** [November 21, 2018, 2:36pm UTC](https://community.mp3tag.de/t/file-properties-vs-mp3tag-name/43630 "2018-11-21T14:36:24Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@rhornsby](https://community.mp3tag.de/u/rhornsby)
#### Post date: [November 21, 2018, 2:36pm UTC](https://community.mp3tag.de/t/file-properties-vs-mp3tag-name/43630/1 "2018-11-21T14:36:24Z")
I've noticed recently that when I put my music into a collection, and renumber, when I look at the files /properties, the track numbers are messed up. Am I doing something wrong? I open the program and it's correct - back to the files and they differ.
---
### Author:  [@rhornsby](https://community.mp3tag.de/u/rhornsby)
#### Post date: [November 21, 2018, 2:40pm UTC](https://community.mp3tag.de/t/file-properties-vs-mp3tag-name/43630/2 "2018-11-21T14:40:03Z")
Maybe I found the "issue". I took out the leading "0" and it worked.
---
### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [November 21, 2018, 5:40pm UTC](https://community.mp3tag.de/t/file-properties-vs-mp3tag-name/43630/3 "2018-11-21T17:40:59Z")
see here for similar findings:
> [@\[X\] Problem with leading zeros in the TRACK tag](https://community.mp3tag.de/t/x-problem-with-leading-zeros-in-the-track-tag/12964/4):
>
> No, I did not say hexadecimal, but octal. [http://en.wikipedia.org/wiki/Octal](http://en.wikipedia.org/wiki/Octal) Ok, this is one way to go, but needs to do it by two filtered steps. Another way to go would be to modify the tag-field TRACK, after importing the number string having the leading zero, by an action "Format value" using the format string: $num(%TRACK%,1). DD.20120120.1444.CET