# Adding a character prefix to autonumbering

**URL:** <https://community.mp3tag.de/t/adding-a-character-prefix-to-autonumbering/60901>\
**Category:** Support\
**Created:** [May 5, 2023, 2:39pm UTC](https://community.mp3tag.de/t/adding-a-character-prefix-to-autonumbering/60901 "2023-05-05T14:39:29Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![dmr](https://community.mp3tag.de/user_avatar/community.mp3tag.de/dmr/32/12902_2.png) [@dmr](https://community.mp3tag.de/u/dmr)\
**Post date:** [May 5, 2023, 2:39pm UTC](https://community.mp3tag.de/t/adding-a-character-prefix-to-autonumbering/60901/1 "2023-05-05T14:39:29Z")

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I'm wondering if there is any way, when using the auto-numbering wizard, to not just specify a number from which the numbering starts, but also to add an alpha-numeric character string as a prefix?

This would really help in the way I'm trying to number my tracks.

Much appreciate any suggestions.

David.

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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:** [May 5, 2023, 2:45pm UTC](https://community.mp3tag.de/t/adding-a-character-prefix-to-autonumbering/60901/2 "2023-05-05T14:45:03Z")

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The field TRACK is defined by the id3 standard to be numeric with the exception of the slash to separate the total number of tracks.  
So, adding a character prefix would create non-standard contents.  
I don't know whether such a format would cause hicups in players - but it is non-standard.

If you still want to get a character in front, you could try - after you have used the auto-numbering wizard - an action of the type "Format value" for TRACK  
Format string: A%track%  
to get the letter "A" in front of the number.

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**Author:** ![dmr](https://community.mp3tag.de/user_avatar/community.mp3tag.de/dmr/32/12902_2.png) [@dmr](https://community.mp3tag.de/u/dmr)\
**Post date:** [May 5, 2023, 3:10pm UTC](https://community.mp3tag.de/t/adding-a-character-prefix-to-autonumbering/60901/3 "2023-05-05T15:10:00Z")

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Thank you, and definitely agree it would be a dangerous thing to start breaking the standard. 🙂

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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:** [June 4, 2023, 3:10pm UTC](https://community.mp3tag.de/t/adding-a-character-prefix-to-autonumbering/60901/4 "2023-06-04T15:10:49Z")

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