Well, I do understand that I sound ungrateful, but I don't mean it like that.
And I do get your point of doing my own script, but I'm saying this because mp3tag has had 2 (I think) new releases since after this bug was found. And it still isn't fixed. So it can't be a time issue. If no new releases had been made, then I would not have posted this.
And also, this is core functionality, so I don't think it should be up to the users to have it work.
I don't believe I am the only one using Musicbrainz as my tagging source, and now, tagging from it is almost impossible (or if not picky, highly annoying) because:
If the multi-disc has seperate titles for each disc, Mp3tag can no longer snap this up. One have to go to musicbrainz to see if this is the case, making it very time consuming. No workaround.
It doesnt recognize multi-discs at all anymore. It puts a 2x15 as a 1x30, and numbers them accordingly. Workaround is possible by simply tagging the full 30 tracks and then manually edit. Time consuming/annoying. Especially in conjunction with the first point.
So you see how this is a severe core functionality breakage? And it worked perfectly fine until the Musicbrainz update. I don't mean to sound like an ass here but after one year I expected such a severe bug to be fixed. Especially since it seems so easy to fix (I wouldn't know, however)