Ophis

Effigies Of Desolation [Compilation]	7
Abhorrence In Opulence	7

Ophiuchi

Shibboleth

7

Oranssi Pazuzu

Muukalainen Puhuu	7
Värähtelijä	7
Mestarin Kynsi	6

Orbit Culture

Rasen	8
Odyssey [EP]	8
In Medias Res	7
Descent	7

Orden Ogan

Ravenhead	9
To The End	8
Vale	7
Easton Hope	7
Gunmen	7
Testimonium A.D. [Demo]	6

Ordo Rosarius Equilibrio

Satyriasis, Somewhere Between Equilibrium And Nihilism [Split]

7

Ordog

The Grand Wall

7

Origin Of Escape

Shapes

7

Orphanage

Inside	9
By Time Alone	8
Oblivion	7
Driven	7

Orphaned Land

Mabool: The Story Of The Three Sons Of Seven	9
El Norra Alila	8
The Beloved's Cry [Demo]	8
The Never Ending Way Of ORwarriOR	8
Sahara	7
All Is One	7
Unsung Prophets & Dead Messiahs	7

Orpheus Omega

Emberglow

7

Ortega

1634	10
The Serpent Stirs [EP]	9
Sacred States	9
A Flame Never Rises On Its Own [EP]	8

Orthodox

Baal	7
Gran Poder	6
Amanecer En Puerta Oscura	6
Axis	6
Sentencia	5
Supreme	2

OSI

Office Of Strategic Influence	9
Free	7
Blood	7
Fire Make Thunder	6
Re: Free [EP]	5

Otep

Sevas Tra	7
Smash The Control Machine	6
Jihad [EP]	6
Atavist	6
House Of Secrets	5
Hydra	5

Oubliette

The Passage	8
Eternity Whispers	7

Our Survival Depends On Us

Melting The Ice In The Hearts Of Men

8

Outre

Hollow Earth

7

Overkill

The Grinding Wheel	7
Scorched	7

Oxbow

Thin Black Duke

6

Öxxö Xööx

Rëvëürt	7
Nämïdäë	5

Ozzy Osbourne

Blizzard Of Ozz	8
Diary Of A Madman	8
No More Tears	8
The Ultimate Sin	7
Ozzmosis	7
Patient Number 9	7
Speak Of The Devil [Live]	6
Tribute [Live]	6
No Rest For The Wicked	6
Just Say Ozzy [Live]	6
Live And Loud [Live]	6
Live At Budokan [Live]	6
Mr. Crowley Live EP [EP]	6
Bark At The Moon	5
Down To Earth	5

P.H.O.B.O.S.

Tectonics	7
Anœdipal	7
Atonal Hypermnesia	7
Phlogiston Catharsis	7

Pa Vesh En

Martyrs

6

Paara

Riitti	8
Yön Olevainen Puoli	7

Pain

Dancing With The Dead	7
Rebirth	7
Nothing Remains The Same	6
Psalms Of Extinction	6
Pain	6
Just Hate Me 1 [Single]	6
Cynic Paradise	6
You Only Live Twice	6

Pain Of Salvation

The Perfect Element, Part I	8
One Hour By The Concrete Lake	7
Remedy Lane	7
"BE"	7
Entropia	7
In The Passing Light Of Day	7

Painted Black

Cold Comfort	9
Raging Light	7

Pale Divine

Painted Windows Black

7