Delete USER frames

[wo80]

I'm trying to delete USER frames from a bunch of mp3s using id3 -2 -rUSER *.mp3, but I cannot get this to work. The ID3 tag of a file looks like this:

D:\media\Music\tests>id3 -2v test.mp3
#file   test.mp3
#tag    ID3v2 3.0
{TALB}
        Romantica
{TPE1}
        Luna
{TIT2}
        Romantica
{TYER}
        2002
{USER::Cop}
        yright notice. These materials are protected by United States copyright law and by international treaties [...]

So, in this case the USER tag doesn't specify a language, but that shouldn't prevent id3 from deleting it, right?

Here's a screenshot with details of the content. I can upload the mp3 file if necessary.

[squell]

Thanks! This feels like a broken ID3v2 tag or a decoding error. (id3 showing "USER::Cop" with the value "yright information..." feels suspect). But yes it would be nice to be able to remove such tags using -rUSER.

I'm fully occupied with a lot of other tasks at the moment so I can't promise I have a fix soon, but this looks like a fun bug to examine when I have some spare time coming up.

To make this slightly easier for me, you can try copying the tag using id3 -D source.mp3 -2u dest.file flag to an empty file, that way the actual mp3 content will be gone. You can then safely attach it here (or you can send it to my email address to be absolutely safe).

[wo80]

This feels like a broken ID3v2 tag

The id3v2.3 spec for the USER frame is

<Header for 'Terms of use frame', ID: "USER">
Text encoding   $xx
Language        $xx xx xx
The actual text <text string according to encoding>

so in this case, it is missing the language part.

or a decoding error

I think id3 is decoding correctly, interpreting the first three letters as the language specification, hence the odd looking USER::Cop. But as I've written, that shouldn't stop it from removing the tag. The language shouldn't matter, so most likely there's a bug when it comes to the removal of USER frames.

I have attached the binary tag produced by id3 -D test.mp3 -2u test.tag

test.zip