Obituary
(Albums: 13, Tabs: 244)
October Tide
(Albums: 3, Tabs: 11)
Officium Triste
(Albums: 1, Tabs: 1)
Old Man’s Child
(Albums: 7, Tabs: 156)
Opeth
(Albums: 15, Tabs: 734)
Ophthalamia
(Albums: 4, Tabs: 21)
Origin
(Albums: 1, Tabs: 1)
Orphanage
(Albums: 2, Tabs: 8)
Orphaned Land
(Albums: 4, Tabs: 47)
Otyg
(Albums: 1, Tabs: 8)
Odious Mortem
(Albums: 2, Tabs: 37)
Odious Sanction
(Albums: 1, Tabs: 1)
Obliveon
(Albums: 4, Tabs: 37)
Oversoul
(Albums: 3, Tabs: 8)
Osmi putnik
(Albums: 3, Tabs: 18)
Opera IX
(Albums: 4, Tabs: 11)
October Falls
(Albums: 1, Tabs: 4)
Obús
(Albums: 1, Tabs: 7)
Ossian
(Albums: 7, Tabs: 18)
Osvajači
(Albums: 2, Tabs: 4)
Odes of Ecstasy
(Albums: 1, Tabs: 2)
Obtest
(Albums: 2, Tabs: 5)
October Thorns
(Albums: 1, Tabs: 6)
Orange Goblin
(Albums: 8, Tabs: 37)
Overkill
(Albums: 18, Tabs: 173)
OSI
(Albums: 2, Tabs: 23)
Overcast
(Albums: 2, Tabs: 4)
Ozzy Osbourne
(Albums: 14, Tabs: 721)
Outworld
(Albums: 1, Tabs: 2)
Omnium Gatherum
(Albums: 9, Tabs: 37)
Orbit Culture
(Albums: 5, Tabs: 24)
Orden Ogan
(Albums: 4, Tabs: 10)
Obscura
(Albums: 4, Tabs: 79)
Opera Magna
(Albums: 2, Tabs: 3)
On Thorns I Lay
(Albums: 3, Tabs: 6)
Omen
(Albums: 2, Tabs: 3)
Ostrogoth
(Albums: 3, Tabs: 4)
Ophidian I
(Albums: 2, Tabs: 10)
Omophagia
(Albums: 2, Tabs: 3)
Onslaught
(Albums: 5, Tabs: 41)
Open Grave
(Albums: 1, Tabs: 1)
Ola Englund
(Albums: 2, Tabs: 6)
Oathbreaker
(Albums: 5, Tabs: 10)
Oculos
(Albums: 2, Tabs: 11)
Oranssi Pazuzu
(Albums: 3, Tabs: 5)
Odraza
(Albums: 2, Tabs: 7)
Ov Sulfur
(Albums: 2, Tabs: 3)
Opprobrium
(Albums: 1, Tabs: 1)
Ogre
(Albums: 3, Tabs: 7)
Obscurity
(Albums: 2, Tabs: 5)
Orchid
(Albums: 5, Tabs: 9)
Oceans of Sadness
(Albums: 1, Tabs: 1)
Ossastorium
(Albums: 1, Tabs: 2)
Oceans of Slumber
(Albums: 1, Tabs: 1)
One Man Army and the Undead Quartet
(Albums: 1, Tabs: 1)
Orpheus Omega
(Albums: 1, Tabs: 1)
One Dead Three Wounded
(Albums: 1, Tabs: 4)
Once Human
(Albums: 1, Tabs: 9)
Old Man Gloom
(Albums: 1, Tabs: 5)
One More Victim
(Albums: 1, Tabs: 9)
Occasum Solis
(Albums: 1, Tabs: 1)
Onward to Olympas
(Albums: 1, Tabs: 1)
Osculum Infame
(Albums: 2, Tabs: 1)