# How are disc and track number tags stored? **URL:** \ **Category:** Support\ **Created:** [May 22, 2014, 6:24am UTC](https://community.mp3tag.de/t/how-are-disc-and-track-number-tags-stored/15757 "2014-05-22T06:24:08Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![AMJF](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/a/3e96dc/32.png) [@AMJF](https://community.mp3tag.de/u/AMJF)\ **Post date:** [May 22, 2014, 6:24am UTC](https://community.mp3tag.de/t/how-are-disc-and-track-number-tags-stored/15757/1 "2014-05-22T06:24:08Z")
This is a curious thing I've noticed since using these tags extensively, and it seems that different players handle these tags in different ways. I thought they were simple integers, but then Mp3tag seems to store them as a count/total. How is that done? Can't be as simple as a string with a slash, surely? ---
**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:** [May 22, 2014, 8:15am UTC](https://community.mp3tag.de/t/how-are-disc-and-track-number-tags-stored/15757/2 "2014-05-22T08:15:54Z")
> [@AMJF](#): > > This is a curious thing I've noticed since using these tags extensively, and it seems that different players handle these tags in different ways. > I thought they were simple integers, but then Mp3tag seems to store them as a count/total. How is that done? Can't be as simple as a string with a slash, surely? Regarding the filetype MP3 read there ... [http://id3.org/id3v2.3.0#Declared\_ID3v2\_frames](http://id3.org/id3v2.3.0#Declared_ID3v2_frames) ... Mp3tag tag-field "Track" ... > [@](#): > > TRCK > The 'Track number/Position in set' frame is a numeric string containing the order number of the audio-file on its original recording. This may be extended with a "/" character and a numeric string containing the total numer of tracks/elements on the original recording. E.g. "4/9". ... Mp3tag tag-field "DISCNUMBER" ... > [@](#): > > TPOS > The 'Part of a set' frame is a numeric string that describes which part of a set the audio came from. This frame is used if the source described in the "TALB" frame is divided into several mediums, e.g. a double CD. The value may be extended with a "/" character and a numeric string containing the total number of parts in the set. E.g. "1/2". DD.20140522.1215.CEST ---
**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, 12:25pm UTC](https://community.mp3tag.de/t/how-are-disc-and-track-number-tags-stored/15757/3 "2026-02-09T12:25:04Z")
Closed on February 9, 2026, 12:25pm UTC