I had a whole lot of songs I downloaded online and not always directly from the album that has everything organized; album name, artist, genre, etc.
This software scans your music library and does all that for you and adds album art.
I would say it’s 98.5% accurate. Only a few songs it renamed to the wrong thing. So look out for that. But it ask for your confirmation before it edits the song info.
It does it in batch by the way
Is there any application that lets you manually add metadata such as album art and co into files?
You can make manual edits. You have to read the instructions or wiki
puddletag does this. It’s similar to mp3tag from Windows.