I want to get rid of the ID3v1 tags of all marked mp3 songs and keep only ID3v2 tags.
Problem: ID3v2 could currently not exist or ID3v2 tag header values could be different from ID3v1 tag header values.
How to solve this?
At first I enabled read and write of ID3v1 and ID3v2
According to the documentation changes of tag values will write them to both ID3 tag headers.
But only when they are changed.
But how do I tell Mp3tag to copy all (~ 300) ID3v1 tag header values to the corresponding ID3v2 tag headers BUT ONLY IF NECESSARY (if they are different)?
AND WITHOUT making dummy changes just to trigger the copy operation?