HEAVY METAL EXPLOSION

O (Fin, black metal) See also: ...And Oceans
O - mCD - 2004

Oathean (S. Korea, black/death metal)
The Eyes of Tremendous Sorrow - CD - 1998
Fading Away into the Grave of Nothingness - CD - 2004
With live bonus track.
The Last Desperate 10 Years As Ever - CD - 2003

Obitania (Spa, ambient)
Pagan Crystal Sphere - CD - 2002

Obituary (US, death metal)
Back from the Dead - CD - 1997
Cause of Death - CD (with 3 bonus) - 1990/1997
Remaster with 3 bonus demotracks. Celtic Frost cover.
Dead - live CD - 1998
The End Complete - CD - 1992
Godly Beings (split with Sepultura) - bootleg CD
Dynamo Open Air '91.
Pain in the Last Path - bootleg CD
Live Europe '92.
Slowly We Rot - CD (with 2 bonus) - 1989/1997
Remaster with the Xecutioner 1986 demo as bonus tracks.
World Demise - CD - 1994

Obligatorisk Tortyr (Swe, death/grind)
Obligatorisk Tortyr - CD - 2000

Oblique Visions (Malta, dark/doom)
Seas of Serenity - CD - 1995

Obliterate (Slovakia, death/grind)
The Feelings - CD - 2000

Obliveon (Can, thrash)
Early demos and first album are more typical thrash, later is more technical/modern thrash.
Cybervoid - CD - 1995
Whimsical Uproar - mCD - 1997
2nd demo from 1987 pressed on CD.

Obliviated See listing for Serpent's Spawn

Oblivion Knight (US, heavy metal) See also: Militia, Majesty
Oblivion Knight - CD - 2009
CD reissue of the band's 1987 and 1990 demos.

Obscene Crisis (Can, death metal)
Silence of the Mind - CD - 1995

Obscene Eulogy (Can, black/death metal)
Defining Hate: The Truth Undead - CD - 2004

Obscenity (Ger, death metal)
Age of Brutality - demo - 1992
Demo-Niac - CD - 1999
Rerelease of the 'Age of Brutality' '92 and 'Amputated Souls' '93 demos.
Suffocated Truth - CD - 1992

Obscure (Spa, death metal)
Curse the Course - demo - 1991

Obscure Infinity (Swe, death metal)
Beyond the Gate - demo - 1992
split with Fulmination - LP - 1994
Tracks from unreleased split LP.

Obscurity (Swe-Malm�, death metal)
Damnation's Pride - CD - 1998
The 1986 and 1987 demos and an unreleased 2-song demo from 1992.
Damnation's Pride - demo - 1987
Ovations to Death - demo - 1986

Obsecration (Gre, death metal)
The Inheritors Of Pain - CD - 1996

Obsessed, The (US, doom metal)
See also: 'Metal Massacre 6.'
Live at the Wax Museum - live CD - 1997
Live Washington, D.C. July 3, 1982.
Streetside/Blind Lightning - mCD - 1994

Obsession (Fin, power metal with gothic elements)
Eye of Drama - mCD - 1998

Obsession (US, heavy metal)
See also: 'Metal Massacre 2' comp.
Marshall Law - mCD - 1984
Methods of Madness - CD (with 2 bonus) - 1987/2000
Methods of Madness - LP - 1987
Scarred for Life - CD (with 2 bonus) - 1986/2000
Scarred for Life - LP - 1986

Obsidian Gate (Ger, black metal)
Colossal Christhunt - CD - 2001

Obskure (Brazil, death metal)
Early '90s style DM with atmospheric interludes/passages.
Overcasting - CD - 1997
Includes tracks from '96 promo tape as bonus.

Obstruction (Hun, heavy metal)
Horizont - CD - 2003
�j V�r - CD - 2000

Obtained Enslavement (Nor, black metal)
Witchcraft - CD - 1997

Obtest (Lith, black metal)
Tukstantmetis - CD - 1997

Obtruncation (Neth, death metal)
The Callous Concept - CD - 1997
Sphere of the Rotting - demo - 1992

Obus (Spa, heavy metal) See also: Venganza
Dejarse la Piel - CD - 1986
Desde el Fondo del Abismo - CD - 2000
El Que m�s - CD - 1984
Pega con Fuerza - CD - 1985
Poderoso Como el Trueno - CD - 1982
Prep�rate - CD - 1981

Ocean (Fra, heavy metal)
Ocean - CD (with four bonus) - 1981/2000
Includes the entire live side of 'Rock Dur!' LP as a bonus.

Ocean (Swe, hard rock) Pre-Overdrive
See Everybody/Bad Things - EP - 1978

Oceana (Ita, gothic/doom, doom/death) See also: Novembre
Oceana - mCD - 1996
The '95/'96 promo reissued with bonustracks.

Oceans of Sadness (Bel, death/black with gothic elements)
For We Are - CD - 2000

Occult (Hol, black metal, black/thrash) See also: Bestial Summoning, Sinister
Earlier stuff is more regular black metal.
The Enemy Within - CD - 1996
Of Flesh and Blood - CD - 1999
Prepare to Meet Thy Doom - CD - 1994
Rage to Revenge - CD - 2001

Occultus (Colombia, black metal)
Cosmos - CD - 1997
Dark Passion (split with Esgaroth) - CD - 1997

Octinomos (Swe, black metal) See also: Algaion, Puissance
Fuckhole Armageddon - CD - 2001

October (US, sludge/metal)
Positively Negative - CD - 1997

October 31 (US, heavy metal) See also: Deceased, Doomstone, K-Octave
See also '...And the Scene Goes On...2' comp.
The Fire Awaits You - CD - 1997
Witchkiller cover.
Meet Thy Maker - CD - 1999
Saxon cover.
Stagefright - live CD - 2003
Saxon cover.
Visions of the End - mCD - 1998
Original 5-track version. Lizzy Borden cover.
Visions of the End - CD (with 5 bonus) - 1998/1999
Reissue with 5 bonus, Jag Panzer/Warlord covers.
Voyage to Infinity - demo - 1996

Ocultan (Brazil, black metal)
Bellicus Profanus - CD - 1999

�delegger (Ger, black metal)
Split with Vordr - EP - 2006

Odyssey (US, thrash)
Catharsis - CD - 2000
Speak No Evil - CD - 1994

Offense (Spa, death/doom)
Aside - CD - 1996

Offering (Swi, death metal)
The Ultimate Offering - mCD - 1993

Oktober (US, black metal)
Heathen Pride - CD - 1998

Old Funeral (Nor, death metal) See also: Immortal, Hades, Burzum
Abduction of Limbs - demo - 1990
Devoured Carcass - EP - 1991
Grim Reaping Norway - CD - 2005
Two '91 shows. Slaughter cover.
The Older Ones - CD - 1999
Compilation of old material including a live track.

Old Man's Child (Nor)
Born of the Flickering - CD - 1995
In Defiance of Existence - CD - 2003
In The Shades Of Life - mCD - 1994/1996
mCD version of their sole '94 demo.
The Pagan Prosperity - CD - 1997
Revelation 666: The Curse Of Damnation - CD - 2000

Old Yron (Ita, heavy metal)
Old Yron - CD (with 2 bonus) - 1989/2009
Reissue of the 1989 LP. Includes 2 bonus tracks from the early 2000s by guitarist Antonio Ferrari.

Omega (UK, NWoBHM) See also: Apocalypse
The Prophet - CD - 1985

Omen (Hun, heavy metal) See also: Pokolg�p, Kalap�cs
Anarchia - CD - 1993
Brut�lis Tang� - CD - 1992
Idegen Anyag - CD - 1997
Jelek - CD - 1994
Koncert - live CD - 1994

Omen (US, heavy metal) See also: Savage Grace, Step Child
Battle Cry - CD - 1984
Battle Cry - CD (with 2 bonus) - 1984/2003
Reissue with 'Metal Massacre'/live tracks.
The Curse - CD - 1986
Escape to Nowhere - CD - 1988
Nightmares - mCD - 1987
Reopening the Gates - CD - 1997
Warning Of Danger - CD - 1985
Warning of Danger - CD (with one bonus) - 1985/2003
Reissue with a live track.

Omnitron (Swe, thrash) Krixhj�lters/pre-Comecon members
Masterpeace - CD - 1990
'Ace of Spades' cover.

Ondskapt (Swe, black metal)
D�dens Evangelium - CD - 2005

One, The (Gre, black metal) See also: Macabre Omen
Guardians Inhuman - CD - 2003

Onirik (Port, black metal)
Our Funeral Yet to Come (split with Morte Incandescente) - CD - 2005

Onkel Tom See Angelripper, Tom

Onslaught (UK, thrash, death metal)
The Force - CD - 1986
Hell in Copenhagen
Live Mar. 28, 1987. 'In Search...' and 'The Force' songs done by 'The Force' lineup.
In Search of Sanity - CD - 1989
Angel Witch cover.
Let There Be Rock (Sy Keeler version) - mCD - 1987
Sy Keeler vocals version of the AC/DC song, with live versions of 'Metal Forces' and a 'Power from Hell/Angels of Death' medley
Let There Be Rock (Steve Grimmett version) - mCD - 1989
Steve Grimmett vocals version of the AC/DC song, and live '88 versions of 'Shellshock' and 'Metal Forces.'
Power From Hell - CD - 1985

On Thorns I Lay (Gre, death/doom with gothic elements)
Egocentric - CD - 2004
Now more like The Gathering.

Onward (US, power metal) See also: Darken, Toby Knapp
The Neverending Sun - CD - 2007
2002-2003 recordings.

Open Fire (Poland, heavy/speed metal)
**See also: 'Metalmania 88' comp.
Demo - 1985
Demo - 1987
Metalmania '87 (split with Stos) - live LP - 1988

Opera IX (Ita, black metal)
Sacro Culto - CD - 1998

Opeth (Swe) See also: Bloodbath
Damnation - CD - 2003
Orchid - CD - 1997
Still Life - CD - 1999/2000

Ophiolatry (Brazil, death metal)
Opposite Monarchy (split with Ancestral Malediction) - mCD - 1999

Ophthalamia (Swe, black metal) See also: Abruptum, Dissection
A Journey In Darkness - CD - 1994
Jon N�dtveidt on vocals.
A Long Journey - CD - 1998
"Corrected" and re-recorded version of 'A Journey...' with All on vocals. Venom cover.
Via Dolorosa - CD - 1995
Mayhem cover.

Oppression (Swe, thrash)
Thrash Clash Volume 2 (split with Diamond Plate) - CD - 2008
Includes 2004-2006 tracks.

Oppressor (US, death metal)
As Blood Flows - demo - 1993
European Oppression Live+As Blood Flows - CD - 1995
Live '95 tracks, '95 studio tracks including a M�tley Cr�e cover, and the demo.
Solstice of Oppression - CD - 1994
Original press on Red Light, retaining the original mix.

Opprobrium (US, death/thrash) Ex-Incubus
Discerning Forces - CD - 2000

Opus Malefici (Ita, black metal)
Obscure Thoughts - mCD - 1998

Oracle (US, power/progressive metal)
As Darkness Reigns - CD - 1993

Orakle (Fra, black metal)
L'ineffable �moi... - mCD - 2002

Orange Goblin (UK, stoner metal)
Time Travelling Blues - CD - 1998

Order From Chaos (US) See also: Vulpecula, Angelcorpse
**Also see 'Midwest Metalfest' comp.
And I Saw Eternity - mCD - 1996
An Ending In Fire - CD - 1998
Crushed Infamy - demo - 1989
Dawn Bringer - CD - 1995
Voivod cover.
Imperium - The Apocalyptic Visions - CD - 2005
'Inhumanities' demo, 1988 rehearsal, and live March 1994.
Inhumanities - demo - 1988
Live Into Distant Fears - EP - 1994
Pain Lengthens Time - live EP
Plateau Of Invincibility - mCD - 1994
Venom/Sodom covers.
Stillbirth Machine - CD - 1992
Will to Power - EP - 1990

Order of the Ebon Hand (Gre, black metal)
**Also see the Bathory tribute 'Hellas Salutes the Vikings'
XV:The Devil - CD - 2005

Ordo Draconis (Neth, black metal)
In Speculis Noctis - mCD - 1999
The Wing & the Burden - CD - 2001

Organic Infest (US/Puerto Rico, death metal)
Agony - mCD - 2001
Black Sabbath cover.
Penitence - CD - 1993
The Way to Temptation - CD - 2003

Organization, The (US) Death Angel members
The Organization - CD - 1993
Savor the Flavor - CD - 1995

Orgy of Pigs (Aus't, death metal)
Where Feelings Die - CD - 1992

Ori�lix (Fra, heavy metal)
La Geste d'Ori�lix - demo - 1987

Original Sin (US, speed/heavy metal) See also: Virgin Steele
Sin Will Find You Out - LP - 1986

Ornaments of Sin (Fra, black metal)
Inhale Zyklon-B - mCD - 2003
Burzum cover.

Orodruin (Neth, black metal) See also: Haat
Split with Vordr - EP - 2004

Orphanage (Neth, death/doom metal) See also: Celestial Season
Inside - CD - 2000

Osbourne, Ozzy (UK)
Blizzard of Ozz - CD (with 1 bonus) - 1980/2002
Remaster/rerecording with redone bass/drum parts.
Diary of A Madman - CD (with 1 bonus) - 1981/2002
Remaster/rerecording with redone bass/drum parts.
Diary of A Madman - CD - 1981/1995
22-bit remaster.
Just Say Ozzy - CD - 1990
Live EP with 4 Ozzy tracks and 2 Black Sabbath tracks.
Tribute/Randy Rhoads Tribute - CD - 1987/2002
Live 1981 and outtakes of 'Dee.'
Under Cover - CD - 2005
All covers, including King Crimson, Cream, Mountain, Mott the Hoople, Mountain, the Beatles, etc.

Osculum Infame (Fra, black metal)
Dor-Nu-Fauglith - CD - 1997

Osiris (Neth, technical thrash)
Futurity and Human Depressions - CD - 1992

Ossian (Hun, heavy metal) Also see: Pokolg�p, Kalap�cs, Metal Lady
**Older material is traditional heavy metal, post-'99 is power metal.
86-92 - CD - 1992
Best of with re-recordings and an unreleased new track.
Ac�lsz�v - CD (with 2 bonus) - 1988
Ac�lsz�v - LP - 1988
�rny�kb�l a F�nybe - CD - 2002
A Szabads�g Fantomja - CD - 2005
Includes 5 2004 live tracks as bonuses.
Az Utols� L�zad� - CD - 1999
New songs, re-recordings, and live tracks.
Emberi Dolgok - CD - 1993
F�lre az �tb�l - CD (with 3 bonus) - 1989/2002
F�lre az �tb�l - LP - 1989
F�mzene - CD - 1999
Gy�jt�pontban - CD - 2000
Hangerőmű - CD - 2003
�t�letnap - CD - 1991/2003
Kereszt�t - CD - 1994
Kit�r�s - CD - 1992
Koncert - live CD - 1998
Titkos �nnep - CD - 2001
Tűzkereszts�g - CD - 2004
Includes 2004 re-recordings of 2 'Gy�jt�pontban' tracks and a short version of 'T�zkereszts�g II' as bonus tracks.

Ossuary (Uruguay, death metal)
We Await the Secret Conspiracy - mCD - 1998
Sarc�fago cover.

Ostrogoth (Bel, heavy metal)
**See also the 'Mausoleum: The Official 20th Anniversary Concert Album' comp.
Ecstasy and Danger - CD - 1984
Ecstasy and Danger/Full Moon's Eyes - CD (with one bonus) - 1983/1984/2002
First mLP and album, with a bonus of the 'Ecstacy and Danger' version from the 'If It's Loud...' comp.
Feelings of Fury - CD - 1987
Too Hot - CD - 1985

Outbreak (Can, heavy metal) See also: Dissection
Master Stroke - LP - 1986

Outburst (Fra, thrash)
Fuck the Engineers - demo - 1986

Outrage (Japan, thrash)
The Final Day - CD - 1991
Life Until Deaf - CD - 1995
We Suck! You Suck! Outrage Re-Mix - CD - 1998
Industrialish remixes by Shige (Chronic).

Overdose (Bra, thrash)
Generally, albums get more modern-influenced sequentially.
Circus of Death - CD - 1992
Progress of Decadence - CD - 1993

Over Dose (Fra, heavy/speed metal)
Chasse � l'Homme - demo - 1988

Overdose (Ger-Frankfurt, heavy metal)
Tight Action - CD (with 4 bonus) - 1985/2009
Reissue of the '85 album including the entire 1984 'Heavy Metal' demo as bonustracks.

Overdrive (Swe, heavy metal) See also: Paradize, Ocean
Metal Attack - CD (with 5 bonus) - 1983/1995
Japanese press with 5 '81 bonus tracks.
Metal Attack - CD (with 5 bonus) - 1983/2003
Reissue with 5 '83 instrumental demo tracks as bonuses (different bonuses from Japanese press).
Mission of Destruction: Live - CD - 2001
Live '82/'85/'97 and two '82 studio tracks.
Overdrive - EP - 1980/2001
Reissue of the 1980 demo on picture EP.
Reflexions - EP - 1982
Reflexions - CD (with 14 bonus) - 1982/2003
Reissue of the EP with various demo/compilation/etc. bonustracks.
Swords and Axes - CD - 1984

Overdrive (UK, NWoBHM)
On Wizard Ridge - CD - 2005
2004 recordings of '79-'81 tracks.

Overkill (US)
Elvis is Dead - bootleg CD
Live New Jersey '92.
Feel the Fire - CD - 1985
Fuck You and Then Some - CD - 1996
'Fuck You' EP with 2 more live tracks and the 'Overkill' EP added.
Hello from the Gutter - bootleg CD
Live NY '90. Seems to be parts of two different shows.
Horrorscope - CD - 1991
I Hate - bootleg CD
Live Allentown, PA, 1990.
I Hear Black - CD - 1993
The Masters of Destruction - bootleg CD
Live Stuttgart, GermanyNov. 19, 2000 and some extra live '90 tracks.
Necroshine - CD - 1999
Overkill - EP - 1985
Power in Black - demo - 1983
Rotten to the Core - bootleg CD
The first demo, s/t EP, live NY Jan. 27, 1990, and live Bochum, Germany May 12, 1986.
Taking Over - CD - 1987
Under the Influence - CD - 1988
W.F.O. - CD - 1994
Secret cover medley of 'The Ripper,' 'Heaven and Hell,' and 'Voodoo Chile.'
Wrecking Everything: Live - live CD - 2002
The Years of Decay - CD - 1989

Overkill L.A. (US, crossover/thrash) See also: Bitch
Also see 'Metal Massacre 2' comp.
Triumph of the Will - CD - 1985

Overload (China, thrash)
Overload - CD - 1996
Various tracks ('The Shadows of Ancestors'/'The Ruined City')
Presumably from a compilation.

Overlord (Ger, death metal)
Overlord - CD - 1994
'God of Thunder' cover.

Overthrow (Can, thrash)
Within Suffering - CD - 1990
Within Suffering: Definitive - CD - 1990/2008
Reissue including 6 '90 live tracks and the entire 1989 'Bodily Domination' demo as bonustracks.

Oxenkiller (Fra, heavy metal)
Demo - 1983
Demo - 1984
Monster of Steel - mLP - 1987

Oxiplegatz (Swe)
With Alf Svensson of At the Gates/Liers in Wait/Grotesque etc. etc.
Worlds and Worlds - CD - 1996

Oz (Fin, heavy metal)
**Also see 'Scandinavian Metal Attack' comps.
Fire in the Brain - CD - 1983
Roll the Dice - CD - 1991

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