# Add track # to file names
**URL:** https://community.mp3tag.de/t/add-track-to-file-names/7309
**Category:** General Discussion
**Created:** [October 9, 2008, 5:30pm UTC](https://community.mp3tag.de/t/add-track-to-file-names/7309 "2008-10-09T17:30:56Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Ladmo](https://community.mp3tag.de/u/Ladmo)
#### Post date: [October 9, 2008, 5:30pm UTC](https://community.mp3tag.de/t/add-track-to-file-names/7309/1 "2008-10-09T17:30:56Z")
In an attempt to clean up my 15k+ MP3 collection I've spent the past few months deleting all the numbers from the start of the file name. I now realize this was a mistake because the players I use most often (wmp and my PSP) won't sort by the track number in the tag. I would like to find a fast way to add the track numbers to the front of the file names so that it would look something like this:
**01 - Introduction.mp3**
Can anyone help me to create an action that will transfer the track number info to the file name of the mp3's? Much thanks.
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### Author:  [@Stevest](https://community.mp3tag.de/u/Stevest)
#### Post date: [October 9, 2008, 6:44pm UTC](https://community.mp3tag.de/t/add-track-to-file-names/7309/2 "2008-10-09T18:44:01Z")
**Action:** Format value
**Field:** \_FILENAME
**Format string:** $num(%track%,2) - %\_filename%
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### Author:  [@Ladmo](https://community.mp3tag.de/u/Ladmo)
#### Post date: [October 9, 2008, 7:04pm UTC](https://community.mp3tag.de/t/add-track-to-file-names/7309/3 "2008-10-09T19:04:09Z")
You are the man! Thanks for this!