I'm not sure if this is to do with Search or the Server (correct me please), but the Search server on NGS Beta 1 shows incorrect # tracks for multi disc releases. e.g.
http://test.musicbrainz.org/search?query=Luminous+Groove&type=release
The top release should really show 91 tracks, but it seems to have picked the figure from disc 3 (20 tracks).
It also highlights that release search should probably also have a column for # of discs. Perhaps a joint column with both figures (for saving screen real estate) would be a good idea. Of course there's the wider issue that results like http://test.musicbrainz.org/search?query=downward+spiral&type=release
are not very useful now without any disambiguation by cat#, date etc, but that's probably a bigger issue best dealt with elsewhere.
Assuming this release does contains two mediums (I'm sure it does but on my older db it doesn't and test is broken at the moment) this is a bug on the Server because the correct data is being returned from search, need to use track-count field in medium-list. I think the release frontend was written before we had added this new track-count field into the MMD.
i.e
http://localhost:8080/?type=release&query=reid:9cbf7040-dbdc-403c-940f-7562d9712514&fmt=json
returns:
{"release-list":{"offset":0,"count":1,"release":[{"score":"100","id":"9cbf7040-dbdc-403c-940f-7562d9712514","title":"To Venus and Back","status":"official","text-representation":{"language":"eng","script":"latn"},"artist-credit":{"name-credit":[{"artist":{"id":"c0b2500e-0cef-4130-869d-732b23ed9df5","name":"Tori Amos","sort-name":"Amos, Tori"}}]},"release-group":{"type":"album"},"date":"1999-09-20","country":"de","medium-list":{"count":2,"track-count":24,"medium":[{"disc-list":{"count":2},"track-list":{"count":11}},{"disc-list":{"count":4},"track-list":{"count":13}}]}}]}}
I agree there should be a #discs column