Nine Inch Nails

Pretty Hate Machine	9
Year Zero	8
With Teeth	8
The Fragile	8
Broken [EP]	8
Add Violence [EP]	7
Bad Witch	7

Nita Strauss

Controlled Chaos	7
The Call Of The Void	7

Nocturnus

The Key

9

Nocturnus AD

Paradox	8
Unicursal	7

Non Est Deus

Legacy

6

Nonpoint

Vengeance	6
The Poison Red	6

Nospūn

Opus

8

Nothingface

Skeletons

8

Novembers Doom

Hamartia	8
Nephilim Grove	7

Novembre

Classica	9
Novembrine Waltz	8
URSA	8

Novena

Eleventh Hour

8

Noveria

The Gates Of The Underworld

7

Nuclear Power Trio

Wet Ass Plutonium

7

Numenorean

Adore

8

Obituary

Dying Of Everything

8

Obscura

Omnivium	10
Cosmogenesis	8
Akróasis	8
Diluvium	8
A Valediction	8

Obscure Sphinx

Void Mother

8

Obsidian Tide

Pillars Of Creation	8
The Grand Crescendo	8

Obsidious

Iconic

8

Oceans Of Slumber

The Banished Heart	8
Oceans Of Slumber	8
Starlight And Ash	6

Oceansize

Frames

9

Odraza

Rzeczom

9

Old Man's Child

The Pagan Prosperity

8

Omnium Gatherum

Grey Heavens	7
The Burning Cold	7
Origin	7

Omnivortex

Circulate

8

On Thorns I Lay

Threnos	8
On Thorns I Lay	7

Opeth

Still Life	10
Blackwater Park	10
Ghost Reveries	10
The Roundhouse Tapes [DVD]	10
In Live Concert At The Royal Albert Hall [DVD]	10
My Arms, Your Hearse	9
Deliverance	9
Damnation	9
Lamentations [DVD]	9
Pale Communion	9
Garden Of The Titans: Opeth Live At Red Rocks Amphitheater [Live]	9
In Cauda Venenum	9
Morningrise	8
Watershed	8
Sorceress	8
Orchid	7
Heritage	7

Ophidian I

Desolate

8

Oranssi Pazuzu

Värähtelijä	8
Mestarin Kynsi	8

Orbit Culture

Nija	8
Descent	8

Origin

Antithesis	8
Entity	8
Chaosmos	7

Orphaned Land

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

Orpheus Blade

Wolf's Cry

8

OSI

Office Of Strategic Influence	8
Blood	8

Ostura

The Room

10

Ou

II: Frailty

8

Overkill

The Years Of Decay	10
Ironbound	10
Horrorscope	8
The Electric Age	8
White Devil Armory	8
Scorched	8
The Grinding Wheel	7
The Wings Of War	7

Ozzy Osbourne

Blizzard Of Ozz	9
No More Tears	9
Patient Number 9	7
Scream	6
Ordinary Man	5

Pagan's Mind

Celestial Entrance	9
Enigmatic : Calling	9