I have been trying several times to create a 4CD release, with no luck (502 errors have been returned). This time, however, I get this message: Error: Caught exception in MusicBrainz::Server::Controller::ReleaseEditor::Add->add "Died at /home/musicbrainz/musicbrainz-server/script/../lib/MusicBrainz/Server/Wizard/ReleaseEditor.pm line 1226." Stack trace: line 1226 MusicBrainz::Server::Wizard::ReleaseEditor line 1227 MusicBrainz::Server::Wizard::ReleaseEditor line 1192 MusicBrainz::Server::Wizard::ReleaseEditor line 778 MusicBrainz::Server::Wizard::ReleaseEditor line 155 MusicBrainz::Server::Wizard::ReleaseEditor::Add line 850 MusicBrainz::Server::Wizard::ReleaseEditor line 779 MusicBrainz::Server::Wizard::ReleaseEditor line 94 MusicBrainz::Server::Wizard::ReleaseEditor line 23 MusicBrainz::Server::Controller::ReleaseEditor::Add line 326 MusicBrainz::Server line 326 MusicBrainz::Server line 326 MusicBrainz::Server line 275 MusicBrainz::Server Request data: $VAR1 = { 'query_parameters' => {}, 'body_parameters' => { 'save' => 'Enter edit', 'wizard_page_id' => '5', 'edit_note' => 'I recently bought these CDs. The listing and CD titles can be seen here: http://www.amazon.co.uk/Simply-Ballroom-Columbia-Orchestra/dp/B000OCZ92I', 'id' => '', 'wizard_session_id' => '0.82278891726278' } }; URL: http://musicbrainz.org/release/add