That's interesting, until now, I was under the impression that it worked, but with a new album I just downloaded, I was pretty confused why the File Explorer doesn't show any ratings.
/edit
After a bit of testing with mp3 and flac files, I found the following:
- With mp3, the file gets real update to the Raw Metadata "RATING WINAMP" field with value between 0-5 and it gets immediately updated in File Explorer too.
- With flac, it gets real update to the Raw Metadata too, but it is not reflected in File Explorer, because Windows doesn't support that (so it never worked

)
- Wacup will use either "
RATING", "
RATING WINAMP" or "
RATING WMP" fields depending of what was used previously for reading and storing rating.
So has this been implemented since last message in April 2025?
Fun fact:
- For a file that has not been rated within wacup, wacup will read whatever is in the metadata. After changing within wacup, it uses Media Library rating and ignores metadata (even when a change is made to the file externally).
- If the RATING of a flac 1-100 or 1-5, wacup understands and displays 1-5 stars, however, after changing the rating within wacup, the metadata field RATING reads multiples of 20 (1-100). File Explorer understands neither, not 5 or 100 and displays 0*.