by MiPi » Sun Oct 14, 2018 11:06 am
I have analyzed this more deeply and the main problem is, that the files have mismatched ID3 v1 and ID3 v2 tags. They contain empty title tag v2, but with encoding set to UTF16, and title is saved to v1 tag, but saved as Windows-1250 ASCII. It is in fact bug in MM, it should not leave encoding from v2, if the tag content is read from v1 (because v2 is empty). I will fix this for the next version of MM, it is rare situation, you are probable the first who experienced this.
One easy solution for you could be Tools - Advanced tag management - Clean ID3v2 tags. It will clean ID3v2 tags and re-scanning will read your ID3v1 tag correctly (and subsequent synchronizing tags will write ID3v2 correctly). But I am not sure, if this is usable for you, as this will delete all tags, that are written to ID3v2 and not to ID3v1 tag (like composer, custom tags, etc). Cleaning ID3v1 tags will fix this too, but it will delete e.g. the titles, as they are written to v1 only. Or you can wait for the fixed version.
I have analyzed this more deeply and the main problem is, that the files have mismatched ID3 v1 and ID3 v2 tags. They contain empty title tag v2, but with encoding set to UTF16, and title is saved to v1 tag, but saved as Windows-1250 ASCII. It is in fact bug in MM, it should not leave encoding from v2, if the tag content is read from v1 (because v2 is empty). I will fix this for the next version of MM, it is rare situation, you are probable the first who experienced this.
One easy solution for you could be Tools - Advanced tag management - Clean ID3v2 tags. It will clean ID3v2 tags and re-scanning will read your ID3v1 tag correctly (and subsequent synchronizing tags will write ID3v2 correctly). But I am not sure, if this is usable for you, as this will delete all tags, that are written to ID3v2 and not to ID3v1 tag (like composer, custom tags, etc). Cleaning ID3v1 tags will fix this too, but it will delete e.g. the titles, as they are written to v1 only. Or you can wait for the fixed version.