| Ref | Album Title | Tracks | Type | Release | |
| 1004 | O.A.R. - Risen | 11 | Album | | Details |
| 3358 | Oasis - Don't Believe The Truth | 13 | Album | 2005 | Details |
| 54 | Oasis - Heathen Chemistry | 12 | Album | 2002 | Details |
| 807 | Oasis - Only Hits | 15 | Album | 2001 | Details |
| 3984 | Oasis - Stop The Clocks Cd 1 | 09 | Album | 2006 | Details |
| 3985 | Oasis - Stop The Clocks Cd 2 | 09 | Album | 2006 | Details |
| 1365 | Obie Trice - Cheers | 17 | Album | 2003 | Details |
| 3797 | Obie Trice - Second Round's On Me | 16 | Album | 2006 | Details |
| 1065 | Obie Trice - The Most Underrated | 21 | Album | | Details |
| 3798 | Obie Trice Presents Trife Life - The Introduction | 27 | Album | 2006 | Details |
| 3303 | Obk - Feeling | 11 | Album | 2005 | Details |
| 2166 | Octobeat The Volume 4 | 12 | Various | 2004 | Details |
| 3459 | Octobre Rouge - Le Plus Fumant | 32 | Album | | Details |
| 3450 | Octobre Rouge - Son Sex Et Skunk | 26 | Album | 2004 | Details |
| 110 | Offspring - Americana | 13 | Album | | Details |
| 296 | Offspring - Ixnay On The Hombre | 14 | Album | | Details |
| 741 | Offspring - Smash | 14 | Album | | Details |
| 1632 | Ol Dirty Bastard - Nigga Please | 13 | Album | 1999 | Details |
| 2567 | Ol Dirty Bastard - Osirus (Advance) | 18 | Album | 2005 | Details |
| 1621 | Ol Dirty Bastard - Return to the 36 Chambers | 17 | Album | 1995 | Details |
| 643 | Ol Dirty Bastard - The Trials and Tribulations | 18 | Album | | Details |
| 3687 | Old Skool Uk Garage Vol 1 | 22 | Various | 2003 | Details |
| 2304 | Olivia Newton-John - Definitive Collection | 22 | Album | | Details |
| 3880 | Olivia Ruiz - La Femme Chocolat | 13 | Album | 2005 | Details |
| 2651 | Omarion - O | 13 | Album | 2005 | Details |
| 2085 | On A Dub Mission 2001 Cd 1 | 10 | Various | 2001 | Details |
| 2086 | On A Dub Mission 2001 Cd 2 | 10 | Various | 2001 | Details |
| 1552 | Once Upon a Time in Mexico | 18 | Ost | 2003 | Details |
| 179 | One Million Strong (Blackjam) | 17 | Various | | Details |
| 2144 | One Step Ahead Vol 3 | 11 | Various | 2004 | Details |
| 1624 | One-T - The One-T Odc | 13 | Album | 2003 | Details |
| 1314 | Only For Children | 13 | Album | | Details |
| 695 | Onyx - Bacdafucup II | 12 | Album | | Details |
| 207 | Ophelie Winter - Privacy | 12 | Album | | Details |
| 1791 | Orbital - Octane | 14 | Album | 2003 | Details |
| 1335 | Oriental Feelings | 11 | Various | | Details |
| 1336 | Oriental Feelings Cd 2 | 10 | Various | | Details |
| 2786 | Oriental Ibiza | 15 | Various | 2005 | Details |
| 2424 | Original Concept - Straight From The Basement Of Kooley High | 18 | Album | 1988 | Details |
| 3429 | Orishas - A Lo Cubano | 15 | Album | | Details |
| 3408 | Orishas - El Kilo | 14 | Album | 2005 | Details |
| 3407 | Orishas - Emigrante | 15 | Album | | Details |
| 3191 | Othorized Fam - 1st Amendment Lost Tracks | 23 | Album | | Details |
| 1753 | Otis Redding - The Definitive Collection | 20 | Album | 1987 | Details |
| 1003 | Otis Redding - The Very Best of | 16 | Album | | Details |
| 660 | O-Town - O2 | 11 | Album | | Details |
| 3209 | Oum Kalthoum - Dance Mix | 08 | Album | | Details |
| 3733 | Out Of Africa | 12 | Ost | | Details |
| 410 | Outkast - Aquemini | 16 | Album | 1998 | Details |
| 3951 | Outkast - Idlewild | 25 | Album | 2006 | Details |
| 1372 | Outkast - Love Below Cd 2 | 20 | Album | 2003 | Details |
| 1371 | Outkast - Speakerboxx Cd 1 | 19 | Album | 2003 | Details |
| 1078 | Outkast - Stankonia | 11 | Album | | Details |
| 620 | Outlawz - Neva Surrenda | 16 | Album | | Details |
| 788 | Outspoken - Bitter Shovel | 12 | Album | | Details |
| 2041 | O-Zone - Disco-Zone | 13 | Album | 2004 | Details |
| 2123 | Ozone - Dragostea Din Tei | 08 | Single/Maxi | 2004 | Details |
| 75 | Ozzy Osbourne - Randy Rhoads Tribute | 16 | Album | 1987 | Details |