# %track% use 9 but want 09

**URL:** https://community.mp3tag.de/t/track-use-9-but-want-09/47658
**Category:** General Discussion
**Created:** [January 25, 2020, 11:47pm UTC](https://community.mp3tag.de/t/track-use-9-but-want-09/47658 "2020-01-25T23:47:32Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![leminsc8](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/l/df705f/32.png) [@leminsc8](https://community.mp3tag.de/u/leminsc8)
#### Post date: [January 25, 2020, 11:47pm UTC](https://community.mp3tag.de/t/track-use-9-but-want-09/47658/1 "2020-01-25T23:47:32Z")

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i want "xx"-binary like "09" not "9" if i used "%track%" .  
this format is not helpfull: "0%track%" because "09,10,..." not "09,010,..."  
searching like this: "%00track%  
can anybody help?

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<div class="post-metadata">

### Author: ![poster](https://community.mp3tag.de/user_avatar/community.mp3tag.de/poster/32/4881_2.png) [@poster](https://community.mp3tag.de/u/poster)
#### Post date: [January 26, 2020, 5:41am UTC](https://community.mp3tag.de/t/track-use-9-but-want-09/47658/2 "2020-01-26T05:41:39Z")

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Take `$num(%track%,2)` as format string.

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<div class="post-metadata">

### 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: [January 26, 2020, 9:33am UTC](https://community.mp3tag.de/t/track-use-9-but-want-09/47658/3 "2020-01-26T09:33:02Z")

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Just as a footnote:  
MP4 files do not allow leading zeros at all.  
And: 3-digit-numbers with leading zeros will be interpreted as octal values in Windows Explorer.