# Assign track and disc numbers is missing leading zero
**URL:** https://community.mp3tag.de/t/assign-track-and-disc-numbers-is-missing-leading-zero/63408
**Category:** Support
**Created:** [January 13, 2024, 9:29am UTC](https://community.mp3tag.de/t/assign-track-and-disc-numbers-is-missing-leading-zero/63408 "2024-01-13T09:29:49Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@Buntobox](https://community.mp3tag.de/u/Buntobox)
#### Post date: [January 13, 2024, 9:29am UTC](https://community.mp3tag.de/t/assign-track-and-disc-numbers-is-missing-leading-zero/63408/1 "2024-01-13T09:29:49Z")
I think there may be a new bug in the assign track and disc numbers function.
When I assign track numbers, I always have MP3Tag put a zero in front of of them, i.e. 01, 02, etc. This function has always worked in the past but now it doesn't and the track numbers now remain as single digits.
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [January 13, 2024, 9:38am UTC](https://community.mp3tag.de/t/assign-track-and-disc-numbers-is-missing-leading-zero/63408/2 "2024-01-13T09:38:24Z")
> [@Buntobox](#):
>
> I always have MP3Tag put a zero in front of of them
See here:
> [@No leading zeros in MP4 track# field](https://community.mp3tag.de/t/no-leading-zeros-in-mp4-track-field/11097):
>
> Mp3tag does not add zeros in the tag mp4 file. After using the feature to add zeros in the "Wizard automatic numbering" I still remain the number one digital. My version: 2.46d
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### Author:  [@Buntobox](https://community.mp3tag.de/u/Buntobox)
#### Post date: [January 13, 2024, 9:40am UTC](https://community.mp3tag.de/t/assign-track-and-disc-numbers-is-missing-leading-zero/63408/3 "2024-01-13T09:40:56Z")
Sorry about that misunderstanding. I normally use FLAC files so I did not realise this issue was file type related.
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [January 13, 2024, 9:43am UTC](https://community.mp3tag.de/t/assign-track-and-disc-numbers-is-missing-leading-zero/63408/4 "2024-01-13T09:43:31Z")
So, not really a bug?
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### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [January 13, 2024, 11:10am UTC](https://community.mp3tag.de/t/assign-track-and-disc-numbers-is-missing-leading-zero/63408/5 "2024-01-13T11:10:08Z")
Yes, it's not a bug.
I'm not sure if the OP knows how to edit topic titles and knows how to re-categorize topics, so I've just done this, moved this topic to #Support, and marked your answer as solution to this topic.
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 12, 2024, 11:10am UTC](https://community.mp3tag.de/t/assign-track-and-disc-numbers-is-missing-leading-zero/63408/6 "2024-02-12T11:10:14Z")
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