I ripped a CD to FLAC. When I opened the directory with Windows 11 File Explorer, I could see an album name, track #, and title. After I updated 1 of the files with MP3TAG, all that information disappeared and the properties sub-function could no longer update the details.

Thank you so much. I found the Optimize FLAC utility option and now everything is working.

[image] JimH49: After I updated 1 of the files with MP3TAG, all that information disappeared and the properties sub-function could no longer update the details. What fields did you update? Did that include large album artwork by chance? [image] No metadata in flac file…

[image] JimH49: FLAC see e.g. this thread about the problems that the windows explorer has with FLAC files: [image] Windows10 FLAC support Tag invisible Support I used MP3TAG several years for my FLAC music tag editing, the FLAC files played by WMP with …

I updated cover, title, composer, artist, etc. And yes, the cover file is a large file.

I copied the large PNG file to a 3 MB JPG file and replaced the cover. Windows is still not happy. I then took another copy of the same FLAC file that never had the large cover art added and added the 3 MB JPG cover. Windows is happy with that copy. It seems that MP3TAG should refuse to add the …

[image] JimH49: It seems that MP3TAG should refuse to add the huge cover file and suggest instead a safe maximum size. The "safe size" depends very much on the player - and the windows implementation of dealing with flac files is obviously flawed as it does not follow the flac standard. As o…

[image] JimH49: I copied the large PNG file to a 3 MB JPG file and replaced the cover. Windows is still not happy. You may need to have mp3tag compress the padding space left behind after changing the cover image size. [image] How does padding and the "Optimize FLAC" f…

After using MP3TAG, Windows loses details for FLAC files

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MotleyG November 27, 2025, 4:50am 2

What fields did you update? Did that include large album artwork by chance?