REQUEST: file write progress for large files

When i rename audiobook that is single 500MB mp3 file updating tags takes some time, however progress is not displayed properly, always shows full progress bar.

1

I understand this feature was implemented with small mp3 files in mind.

possibly that feature was designed for progress when updating multiple files?
file 1 of 10 [X...................]
file 5 of 10 [XXXXX............]
file 10 of 10 [XXXXXXXXXX]

Zerow there is no estimate that updates, mp3tag always shows full green bar as on my screenshot from very beginning to an very end, that's the problem.

That's exactly what i said, thus when updating audio that is one huge mp3 file it works not as expected.