I couldn’t find any information about track length in the guideline: when adding tracks should the track length be what is reported on the cover (if available) or is it better to use the times that are inferred from added discid?
Also, how do you pick a recording’s length when the recording is associated with multiple tracks that have different lengths?
For a track on a CD where the TOC is available, there is no choice: MB will automatically take the track lengths from the TOC. Similarly, for recordings that belong to one or multiple releases, there is no way to set the length, as it is automatically derived as the median of the track lengths.