Opeth

The Devil's Orchard - Live At Rock Hard Festival 2009 [Live]	8
Sorceress [Single]	8

Ophidian I

Desolate

9

Ophis

Spew Forth Odium

8

Orange Goblin

Sucking The 70's - Back In The Saddle [VA]	10
Back From The Abyss	9
Frequencies From Planet Ten	8
Time Travelling Blues	8
The Wolf Bites Back	8
A Eulogy For The Damned	7

Oranssi Pazuzu

Valonielu	8
Värähtelijä	7
Mestarin Kynsi	7
Kosmonument	6

Orbit Culture

Shaman [EP]	9
Descent	9

Orchid

Capricorn

8

Orden Ogan

To The End	9
Ravenhead	8
Gunmen	8

Organic Reaction

Mysteries Of The Lost World

8

Organized Chaos

Divulgence

9

Origin

Unparalleled Universe	8
Chaosmos	8
Omnipresent	7
Abiogenesis - A Coming Into Existence [Compilation]	7

Origin Of Escape

Shapes

8

Orkan

Livlaus

7

Orkrist

Luea

6

Orphaned Land

All Is One	10
Mabool: The Story Of The Three Sons Of Seven	9
The Never Ending Way Of ORwarriOR	9
Unsung Prophets & Dead Messiahs	9
Ararat [EP]	8
Kna'an [Collaboration]	7

Orpheus Omega

Partum Vita Mortem	8
Portraits [EP]	8
Exist To Observe [Single]	8
The Prophecy [Single]	8

Ortega

The Serpent Stirs [EP]

7

OSI

Office Of Strategic Influence	10
Free	10
Re: Free [EP]	9
Fire Make Thunder	9

Osiris

Meanders A Soul​.​.​.

8

Ostrogoth

Last Tribe Standing [EP]

7

Osvajači

Krv I Led	8
Sam	7
Vrelina	5

Otep

Generation Doom

7

Otyg

Älvefärd

7

Ou

One

6

Ouroboros

Emanations

9

Outre

Hollow Earth

7

Overkill

Horrorscope	9
The Grinding Wheel	9
Feel The Fire	8
The Years Of Decay	8
Coverkill [Compilation]	8
Ironbound	8
The Electric Age	8
White Devil Armory	8
The Wings Of War	8
Taking Over	7
Scorched	7

Ovid's Withering

Scryers Of The Ibis

8

Oxbow

Thin Black Duke

8

Ozzy Osbourne

Bark At The Moon	9
No More Tears	9
Ordinary Man	9
Blizzard Of Ozz	8
Ozzmosis	8
Black Rain	8
Patient Number 9	8
Diary Of A Madman	7
No Rest For The Wicked	7
The Ultimate Sin	7
Down To Earth	7
Scream	7

P.O.D.

Veritas

7

Pagan Altar

The Room Of Shadows

7

Pagan's Mind

Heavenly Ecstasy

8

Paganizer

Beyond The Macabre

7

Pain

Coming Home	8
I Am	8

Pain Confessor

Incarcerated

7

Pain Of Salvation

Remedy Lane	10
The Perfect Element, Part I	9
In The Passing Light Of Day	9
Panther	9
Accelerator [Single]	9
Restless Boy [Single]	9
Falling Home	8
Panther [Single]	8
Road Salt Two	7

Pale Divine

Pale Divine

8

Palefeather

Palefeather

8

Palehørse

Palehørse

7

Pallbearer

Foundations Of Burden	8
Heartless	8