Question mark for length

After Lookup I have question marks for length. What means this and how can i edit this?

I also have a problem with full album tracks. Lookup recognize all important information but choose one explicit song with explicit length (eg 3:01). The original and correct value (eg 51:44) will be overritten. Now I want to edit this but that dont work. What could I do?

The question marks mean that the associated track on MusicBrainz does not have information about the track’s duration. It is not a tag that can be overwritten, because the duration is a feature of the recording itself and not tagable metadata.


In addition to @mfmeulenbelt’s answer: You could add the track length to the MB database first. If you think your song without track length could be this one:

you can manually edit and enter the length with


That helps me. Thanks