| The Days Of Grays (2×LP, Album, Limited Edition, Numbered) | Nuclear Blast, Nuclear Blast | NB 2379-1, 27361 23791 | Germany | 2009 | |
| The Days Of Grays (CD, Album, CD, , All Media, Limited Edition, Digibook) | Nuclear Blast, Nuclear Blast | NB 2379-0, 27361 23790 | Germany | 2009 | |
| The Days Of Grays (CD, Album, Promo) | Nuclear Blast, Platinum (5) | NB 2379-2 | Thailand | 2009 | |
| The Days Of Grays (CD, Album) | Irond | IROND CD 09-1634 | Russia | 2009 | |
| The Days Of Grays (CD, Album) | Nuclear Blast, Nuclear Blast | NB 2379-2, 27361 23792 | Germany | 2009 | |
CD packaged in jewel case with clear tray. 14 page booklet with lyrics, credits, photos, and thanks.
Arranged By – - Sonata Arctica , - Tony Kakko
Bass – - Marko Paasikoski
Cello – - Perttu Kivilaakso (tracks: 1, 6, 11, 13)Drums – - Tommy Portimo
Guitar – - Elias Viljanen
Illustration – - Gina Pitkänen , - Inferi (5) , - Janne Pitkänen
Keyboards – - Henrik Klingenberg , - Tony Kakko
Mastered By – - Svante Forsbäck
Mixed By – - Mikko Karmila
Organ [Hammond] – - Henrik Klingenberg
Photography By [Band] – - Toni Härkönen
Producer – - Sonata Arctica , - Tony Kakko
Recorded By – - Ahti Kortelainen , - Elias *, - Henrik *, - Kime Klemettinen * (tracks: 2, 9), - P. Rockvalley (tracks: 1, 6, 11, 13), - Pasi Kauppinen , - Samu Oittinen , - Tony Kakko
Vocals – - Johanna Kurkela (tracks: 2, 9), - Tony Kakko
Written-By – - Tony Kakko
Phonographic Copyright Nuclear Blast
Copyright Nuclear Blast
Distributed By Nuclear Blast USA
Manufactured By Nuclear Blast USA
Record Company Nuclear Blast GmbH
Record Company Nuclear Blast America, Inc
Recorded At TicoTico Studio
Recorded At Fantom Studio
Recorded At Magic 7 Studio
Recorded At Lanceland 2
Recorded At Kakkosstudio
Recorded At Studio 57 2
Recorded At RockValley Studios
Recorded At Great Sounds Studio
Mixed At Finnvox
Mastered At Chartmakers