# \[X\] M4a Renumber Bug

**URL:** https://community.mp3tag.de/t/x-m4a-renumber-bug/18690
**Category:** No Bugs
**Created:** [February 10, 2017, 1:27pm UTC](https://community.mp3tag.de/t/x-m4a-renumber-bug/18690 "2017-02-10T13:27:22Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![marktherob2001](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/m/c57346/32.png) [@marktherob2001](https://community.mp3tag.de/u/marktherob2001)
#### Post date: [February 10, 2017, 1:27pm UTC](https://community.mp3tag.de/t/x-m4a-renumber-bug/18690/1 "2017-02-10T13:27:22Z")

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I have encountered a minor problem. If the type is M4A the leading zero is not inserted in the track no field.

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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 10, 2017, 5:04pm UTC](https://community.mp3tag.de/t/x-m4a-renumber-bug/18690/2 "2017-02-10T17:04:15Z")

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No bug. MP4 does not allow padding zeros.

Here is a thread on a similar topic:/t/10896/1

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### Author: ![Florian](https://community.mp3tag.de/user_avatar/community.mp3tag.de/florian/32/5759_2.png) [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [December 28, 2018, 6:51pm UTC](https://community.mp3tag.de/t/x-m4a-renumber-bug/18690/3 "2018-12-28T18:51:04Z")

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