# Converting 1 to 01

**URL:** https://community.mp3tag.de/t/converting-1-to-01/4294
**Category:** Support
**Created:** [January 6, 2007, 8:20pm UTC](https://community.mp3tag.de/t/converting-1-to-01/4294 "2007-01-06T20:20:13Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![sigloiv](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/s/848f3c/32.png) [@sigloiv](https://community.mp3tag.de/u/sigloiv)
#### Post date: [January 6, 2007, 8:20pm UTC](https://community.mp3tag.de/t/converting-1-to-01/4294/1 "2007-01-06T20:20:13Z")

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Is there some way I can either

- apply one Action to all tracks that converts the track # from 1 to 01 or 2 to 02, etc. (and have it automatically skip over track #s 10+) or
- have Convert Tag --\> Filename always create two-digit track #s on the filename, even if the track # is one-digit

AMG/Amazon keeps making track #s one-digit, and I've created an action that adds a zero to a track #, but I can't apply it to two-digit track #s or else I get things like "010". 

I'm really having difficulty figuring out regular expressions, so if someone could help me out here I'd be really thankful.

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### Author: ![Sebastian\_Mares](https://community.mp3tag.de/user_avatar/community.mp3tag.de/sebastian_mares/32/9285_2.png) [@Sebastian\_Mares](https://community.mp3tag.de/u/Sebastian_Mares)
#### Post date: [January 6, 2007, 9:07pm UTC](https://community.mp3tag.de/t/converting-1-to-01/4294/2 "2007-01-06T21:07:26Z")

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This has been answered already - use **$num(%track%,2)** with a Format values action or when doing Tag - Filename.

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### Author: ![kockroach](https://community.mp3tag.de/user_avatar/community.mp3tag.de/kockroach/32/101_2.png) [@kockroach](https://community.mp3tag.de/u/kockroach)
#### Post date: [January 6, 2007, 10:10pm UTC](https://community.mp3tag.de/t/converting-1-to-01/4294/3 "2007-01-06T22:10:41Z")

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You can also use the Auto Numbering Wizard. There is an option to add leading zeros for single digit tracknumbers.

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### Author: ![sigloiv](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/s/848f3c/32.png) [@sigloiv](https://community.mp3tag.de/u/sigloiv)
#### Post date: [January 9, 2007, 3:24am UTC](https://community.mp3tag.de/t/converting-1-to-01/4294/4 "2007-01-09T03:24:46Z")

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I'm sorry. I truly tried looking around for the answer before posting here. Still, I really appreciate the help. Thanks!

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### Author: ![system](https://community.mp3tag.de/uploads/default/original/2X/c/ce7035d426cb755a7916793326d23b465222a407.png) [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:20pm UTC](https://community.mp3tag.de/t/converting-1-to-01/4294/5 "2026-02-09T12:20:05Z")

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