Missing metadata on .wav

[ilpelle]

Hi all
when I render a song, if I set some field (title, artist etc) in Project Render Metadata for scheme ID3 (MP3) I can find them on the resulting .MP3, but if I set the same data on INFO (WAV) scheme these data are not written (see attach): where I'm wrong?

Many thanks in advance

Ciao
ilpelle