# Auto-Numbering Wizard works incorrectly by using leading zeros

**URL:** https://community.mp3tag.de/t/auto-numbering-wizard-works-incorrectly-by-using-leading-zeros/56359
**Category:** Support
**Created:** [February 16, 2022, 8:55pm UTC](https://community.mp3tag.de/t/auto-numbering-wizard-works-incorrectly-by-using-leading-zeros/56359 "2022-02-16T20:55:23Z")
**Posts on this page:** 1
**Showing post:** 2

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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: [February 16, 2022, 8:58pm UTC](https://community.mp3tag.de/t/auto-numbering-wizard-works-incorrectly-by-using-leading-zeros/56359/2 "2022-02-16T20:58:44Z")

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see this thread

> [@\[X\] Problem with leading zeros in the TRACK tag](https://community.mp3tag.de/t/x-problem-with-leading-zeros-in-the-track-tag/12964/2):
>
> We have already noted this phenomenon. [/t/11709/1](https://community.mp3tag.de/t/11709/1) The problem seems not related to Mp3tag but to other software on the target system. Numbers resp. number strings (!), which contain only digits from 0 to 7 and begin with 0, are interpreted as octal numbers by the other software. Do deeper search into this direction. The ID3 standard for ID3v2.3 and ID3v2.4 says: TRCK The 'Track number/Position in set' frame is a numeric string containing the order number of the audio-file on its origina…

and look for the explanation on "octal numbers".  
It's a bug in the Windows explorer.

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