i've a lot of aac audio files tagged, that are showed correctly with aimp audio player, but when i try to use mp3tag v2.84a to tag this tell me that all aac audio files does not contain any tag, is a bug or my error ?
Can you send me one of those files to analyze the issue?
The file you've sent is actually an AAC file wrapped inside of an MP4 container. So if you rename the file to .m4a (.mp4 also works) you should be fine.
Thanks, i'll try!