OBDURATED - I Feel Nothing...read 

OBSCURITY - Tenkterra...read

OBSESSION - Carnival Of Lies...read

OCEANS OF NIGHT - Domain...read

OCTOBER RAGE: Outrage...read 

OMEGA CROM - Beyond Control...read 

OMEGA REIGN - Arise...read 

OMEGA XENTAURI - To A Debt That Was Never Ours...read 

OMISSION - Pioneers Of The Storm...read 

OMISSION - Thrash Metal Is Violence...read

OPERA MAGNA - POE...read

ORDER OF NINE - Seventh Year Of The Broken Mirror...read

ORIONS'S REIGN - Nuclear Winter...read

ORPHEUS - Orpheus...read

OUTLIAR - Provoked To Anger...read 

OUTRAGE - Go To Hell...read

OUTRAGE - We The Dead...read  

OUTWORLD - Outworld...read

OVERDRIVE - The Final Nightmare...read 

OVERDRIVE 20 YEARS - Tribute To PATRICK DE SLOOVER...read

OVERKILL - Killbox 13...read

OVERLOADED - Regeneration...read

OVERLORDE SR - Medieval Metal Too...read 

OVERMASTER - From Nowhere To No One...read