Understanding Tags

[ohrenkino]

You may want to have a look at wikipedia for more details on tags:

ID3

All these tags are ID3 tags - but with a different version or purpose.
MP3tag understands how to handle them.

For your files I would recommend ID3V2.3 and ID3V1 - but no APE. V2.3 Tags are probably supported by most players.
APE tags in MP3 files are used by MediaMonkey to save replaygain data unless told otherwise. AFAIK.

Here is an example procedure how to cut APE tags - you will probably be able to adapt it to V1 tags:

Windows Album Artist differs from Album Artist in mp3tag

select one of these files and check which tag versions you have in it: just ID3Vx or also APE tags? You can see that in the window title of the extended tags dialogue or a column fairly far to the right. The check which tag versions you read, write and delete: see File>Options>Tags>Mpeg. If you do not read or write APE tags but they are still in the files, it could be that you see the contents of the APE tags in the other programs. To remove the APE tags, select "Delete" only for APE tags, …