What should be done in the case of bands like Vomitus (http://www.metal-archives.com/bands/Vomitus/3540329736) where an album was recorded and never officially released, but made it's way around through tape dubs and online sharing? Looks a bit ugly to have the track-list and info in the additional info section.

Band discographies on here only list publicly- and officially-released material, so leaving them in the notes is really the only thing that can be done (for now, at least).