In the Help-description Menupoint
Tools -> Options -> Mpeg -> chapter Write
is to read:
ID3v2 if enabled, Mp3tag writes an ID3v1 tag to the file.
Do You agree, it should be corrected to:
ID3v2 if enabled, Mp3tag writes an ID3v1 tag to the file and an ID3v2 tag to the file.
Best regards
John