# Problem with total number of tracks field **URL:** https://community.mp3tag.de/t/problem-with-total-number-of-tracks-field/17057 **Category:** Support **Created:** [July 16, 2015, 2:46pm UTC](https://community.mp3tag.de/t/problem-with-total-number-of-tracks-field/17057 "2015-07-16T14:46:22Z") **Posts on this page:** 1 **Showing post:** 4
### Author: ![DetlevD](https://community.mp3tag.de/user_avatar/community.mp3tag.de/detlevd/32/123_2.png) [@DetlevD](https://community.mp3tag.de/u/DetlevD) #### Post date: [July 17, 2015, 8:06am UTC](https://community.mp3tag.de/t/problem-with-total-number-of-tracks-field/17057/4 "2015-07-17T08:06:18Z")
> [@Nevillet](#): > > ... I've looked at the help entry you mentioned but I still don't get it. ... The manual says: %\_total% Total number of tracks from xx/xx track-number field Before you can use the content form the variable %\_total%, for example for renaming purposes, you have to make sure, that the tagfield TRACK contains a data structure as of "tracknumber/totaltracknumber", for example "08/15". In this case the variable %\_total% will be able to return the value "15", ... even when only one file has been selected. At first you can prepare a tagfield TOTALTRACKS. Select all files from a logical set of files (folder, album or such), for example 5 files. Then apply ... Action: Format value Tagfield: TOTALTRACKS Formatstring: %\_total\_files% All files will get the tagfield TOTALTRACKS filled with the number "5". Then apply ... Action: Format value Tagfield: TRACK Formatstring: $if(%TOTALTRACKS%,%TRACK%'/'%TOTALTRACKS%,%TRACK%) Now all the tagfields TRACK should contain a text string, for each ... "1/5", "2/5", "3/5", "4/5", "5/5". Now you can use the variable %\_total% for renaming purposes. If the tagfield TOTALTRACKS still exists, then you may use the value variable %TOTALTRACKS% for the same purpose. See also ... [What is the correct format for numbering tracks?](https://community.mp3tag.de/t/16845/3) Note: The media file type MP4 can hold only one numerical value in its track tagfield. For MP4 Mp3tag delivers the variable %\_total% as empty. DD.20150717.1254.CEST, DD.20150722.1955.CEST --- _[View the full topic](https://community.mp3tag.de/t/problem-with-total-number-of-tracks-field/17057)._