Duration, bit rate and sample rate not shown on few mp3's

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1

I don't know, if this ist a corruption of the files or a bug in V2.87a.
In a large choice of files, round about 0,25 % are shown without duration time, bit rate and sample rate.
In the file properties and vlc tools everything ist shown properly. So I think, it can't be missing.
Has anybody an idea?

2

Check the files with MP3val, Mp3diags and/or foobar2000.

3

Thanks ohrenkino.
I checked all files with MP3val and found many more minor errors.
The fakt that windows explorer's and vlc's properties showed all tags made me unbeleiving.

4

It is not quite clear if MP3tag now shows all the information that you expected.