Using [none] in the catalog number field would allow us to mark the difference between "this has no cat#, and I know that" and "I don't know if this has a cat#".
The updated page would be (only change is the "Catalog number" section): http://wiki.musicbrainz.org/User:Reosarevok/Release -- Nicolás Tamargo de Eguren _______________________________________________ MusicBrainz-style mailing list MusicBrainz-style@lists.musicbrainz.org http://lists.musicbrainz.org/mailman/listinfo/musicbrainz-style