Extended Tags (Erweitete Tags)

[ohrenkino]

I am not sure whether you had a look at the documentation:

Tag Field Mappings – Mp3tag Documentation

as otherwise you would not have stated that

@HGA

If somebody is using the 4 character frame name, MP3tag is creating a new TXXX frame. For example. TDRL. Therefore you have to know the MP3tag name. For TDRL it is RELEASETIME and not "Date Release".

In the documentation you may find all the internal names that MP3tag uses.

@HGA

the 4-character frame name

is only valid for MP3 tags. FLAC, MP4 etc. use different names in many cases.
And as you can tag all those file types at the same time and you don't have to take care into which field type the information is mapped in the end, if find not at all that

@HGA

it has some limitations, due to missing flexibility.

but the contrary is true: the user is very flexible to edit tag data and is not limited to the confines of a special tag version.
In respect to the case of tag field names, see this thread:

Tagging Flac Files and Field-Name Letter Casing

Greetings, all, I am new here, and am glad I have found place where I hope I can get some help. I have been using mp3 tag a while now to edit and tag my flac files. I have two questions about this; Q#1: I noticed and this has always kind of bugged me, but have not known how to deal with it. Whenever I edit a tag for a song such as a the title of a track on a flac album, I find that the field-names seem to be converted to all caps. So if I had edited the title of a song from a flac album, th…