| Artist Name: | Record Title: | Label: | Media Type: |
| OASIS | WHATS THE STORY | EPIC | CD |
| OBITUARY | GODLY BEINGS | NOIRTHWINDS | CDR |
| OBSESSION | METHOD OF MADNESS | METAL MAYHEM | CD |
| OBSESSION | SCARRED FOR LIFE | METAL MAYHEM | CD |
| OBSESSION/WITCHKILLER | MARSHALL LAW/DAY OF THE SAXONS | SPV | CD |
| ODIN | BY THE GODS | MIGHTY ODIN | CD |
| ODIN | CAUTION |
|
CDR |
| ODIN | DON'T TAKE NO FOR AN ANSWER |
|
CDR |
| ODIN | DON'T TAKE NO/THE GODS MUST BE CRAZY |
|
CDR |
| ODIN | FIGHT FOR YOUR LIFE | VICTOR | CDR |
| ODIN | THE GODS MUST BE CRAZY | LIBRA | CD |
| OFFSPRING | AMERICANA |
|
|
| OFFSPRING | SMASH | EPITAPH | CD |
| OMEN | BATTLE CRY | METAL BLADE | CD |
| OMEN | THE CURSE/NIGHTMARES E.P. | METAL BLADE | CD |
| OMEN | WARNING OF DANGER |
|
CDR |
| ON BROKEN WINGS | IT'S ALL A LONG GOODBYE | EULOGY | CD |
| ONSLAUGHT | IN SEARCH OF SANITY | LONDON | CD |
| ONSLAUGHT | IN SEARCH OF SANITY(PROMO) | LONDON | CD |
| ONSLAUGHT | POWER FROM HELL | MUSIC FOR NATIONS | CD |
| ONSLAUGHT | THE FORCE | MUSIC FOR NATIONS | CD |
| OPETH | GHOST REVERIES | ROADRUNNER | CD |
| ORGANIZATION'THE | SAVOR THE FLAVOR | METAL BLADE | CD |
| ORGANIZATION'THE | THE ORGANIZATION | INTERCORD | CD |
| OTEP | HOUSE OF SECRETS | CAPITOL RECORDS | CD |
| OUTRAGE | BLIND TO REALITY | POLYDOR | CD |
| OUTRAGE | THE FINAL DAY | POLYDOR | CDR |
| OVERDOSE | CIRCUS OF DEATH | PAVEMENT | CD |
| OVERDOSE | PROGRESS OF DECADENCE | FUTURIST | CD |
| OVERDOSE | SCARS | FIERCE | CD |
| OVERDOSE | YOUR REALLY BIG | COGUMELO | CD |
| OVERDRIVE | SWORDS AND AXES | ROCK TREASURES | CDR |
| OVERKILL | COVERKILL | CMC | CD |
| OVERKILL | FEEL THE FIRE | MEGA-FORCE | CD |
| OVERKILL | FROM THE UNDERGROUND AND BELOW | CMC | CD |
| OVERKILL | FUCK YOU | MEGA-FORCE | CD |
| OVERKILL | FUCK YOU AND THEN SOME | MEGA FORCE | CD |
| OVERKILL | HOROSCOPE | MEGA-FORCE | CD |
| OVERKILL | I HEAR BLACK | ATLANTIC | CD |
| OVERKILL | POWER IN BLACK/ROTTEN TO THE CORE | REBORN | CD |
| OVERKILL | TAKING OVER | ATLANTIC | Record |
| OVERKILL | TAKING OVER | ATLANTIC | CD |
| OVERKILL | THE KILLING KIND | CONCRETE | CD |
| OVERKILL | THE YEARS OF DECAY | MEGA-FORCE | CD |
| OVERKILL | UNDER THE INFLUENCE | MEGA-FORCE | CD |
| OVERKILL | W.F.O. | ATLANTIC | CD |
| OVERKILL | WRECKING YOUR NECK | CONCRETE | CD |
| OZ | FIRE IN THE BRAIN | COMBAT | Record |
| OZ | FIRE IN THE BRAIN | BLACK MARK | CD |
| OZ | III WARNING | COMBAT | Tape |
| OZ | ROLL THE DICE | BLACK MARK | CD |
| OZZ 2 | THE ASSASSIN | LINE | CDR |
| OZZY OSBOURNE | BARK AT THE MOON | EPIC | CD |
| OZZY OSBOURNE | BARK AT THE MOON | C.B.S. | Record |
| OZZY OSBOURNE | BEST OF OZZ | CBS SONY | CD |
| OZZY OSBOURNE | BLIZZARD OF OZ | EPIC | CD |
| OZZY OSBOURNE | CRAZY IN SAN FRANCISCO |
|
CDR |
| OZZY OSBOURNE | DIARY OF A MADMAN | EPIC | CD |
| OZZY OSBOURNE | DOWN TO EARTH | EPIC | CD |
| OZZY OSBOURNE | FLYING HIGH | JET | RECORD SINGLE PROMO |
| OZZY OSBOURNE | INTERVIEW |
|
PICTURE DISK |
| OZZY OSBOURNE | JUST SAY OZZY | EPIC | CD |
| OZZY OSBOURNE | LET'S GET CRAZY | OH BOY | CD |
| OZZY OSBOURNE | LIVE AND LOUD(SPEAKER GRILL) | EPIC | CD |
| OZZY OSBOURNE | NO MORE TEARS(2 BONUS) | EPIC(JAP) | CD |
| OZZY OSBOURNE | NO REST FOR THE WICKED | EPIC | CD |
| OZZY OSBOURNE | OZZMOSIS | EPIC | CD |
| OZZY OSBOURNE | PARTY WITH THE ANIMAL | DDR | CD |
| OZZY OSBOURNE | RARITIES 1 |
|
CDR |
| OZZY OSBOURNE | SPEAK OF THE DEVIL | EPIC | CD |
| OZZY OSBOURNE | TEN COMMANDMENTS | PRIORITY | CD |
| OZZY OSBOURNE | THE OZZMAN COMETH | EPIC | CD |
| OZZY OSBOURNE | THE ULTIMATE SIN | CBS | CD |
| OZZY OSBOURNE | TRIBUTE | C.B.S. | CD |
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