Once I add a cover into a mp3 file, Mp3tag may extend its length probably, the bigger cover file is, the longer mp3 file I will get. I'm using Mp3tag v3.02

Thank you, I just missed the other two. Problem solved, MP3 Diags>Apply a single transformation>Remove unsupported streams, then I got a mp3 file with cover art and original length.

By "length" do you mean "playing time" or "size in bytes"? If the playing time increases: how do you know? Where do you see that increase?

I mean "playing time", I made a copy before adding the cover, so I could compare edited one with the original one, I played them with both Potplayer(Windows) and smartphone(Android), and get the same result. Such things happened frequently after I updated Mp3tag to v3.02 but never in older version. …

But the display of the length in MP3tag does not change? I would test these files with the linked tools: [image] How to check files for errors? Howto It’s required and often helps to reduce support cycles to check files for errors before filing a bug report. …

[image] ohrenkino: But the display of the length in MP3tag does not change? No. Thanks for your work, I'll be waiting for ya.

[image] Dague: I'll be waiting for ya. I don't understand. Do you expect me to [image] ohrenkino: test these files with the linked tools as I wrote [image] ohrenkino: I would ? You have to test them. And try to repair them.

Sorry, I misunderstood what you said. I just tried mp3val, it didn't work at all.

[image] Dague: I just tried mp3val, The 3 tools serve different purposes and are good at different disciplines. So you probably would have to try them all.

Adding a cover may change the length

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ohrenkino July 24, 2020, 2:44pm 4

But the display of the length in MP3tag does not change?
I would test these files with the linked tools:

and see if there is a cause why the players interpret the covers as music data.