These problems fixed for next release
Okay your second example consists of sub folders of a a folder each representing a separate disc of one release, so we have 16 tracks one one disc and 2 on the other and we want to match to http://www.discogs.com/Young-Jeezy-The-Inspiration/release/5100080
I’ve tested this with both Only allow match if all songs in grouping match to one album and Only allow if Match all tracks to Release enabled.
The trouble is that MusicBrainz does not contain this 18 track release only the 16 track release as and the 2 track release as another. Now SongKong recognises that these two subfolders may be part of the same album and tries to match all 18 songs to one album but fails, however this having failed because it then tries matching the separate folders and matches the 16 track release to one folder, (not sure why it doesn’t match the 2 track release at the moment) and so Discogs gets passed the 16 songs to match rather than the full 18 songs.
Now you may wonder why does the MusicBrainz matching work allow 16 track match when you asked SongKong to Only allow match if all songs in grouping match to one album. Well its difficult to the group multiple folders to one group accurately so if no match is found its reasonable approach to check each folder one at a time.
Note:If you do actually put all 18 songs into a single folder then you get the behaviour you want, no match to Musicbrainz and all 18 tracks matched to Discogs.
One solution I could envisage working on this case is after failed MusicBrainz match of grouping consisting of multiple folders it tries to match that grouping to Discogs, before doing Musicbrainz match folder a t a time. Whether this makese sense in general I need to think about a bit more.