Record 
|
Label
| Year
|
| O Pioneers!!! - Neon Creeps | Asian Man |
2009 |
O Pioneers!!! / The Anchor - Split  | Triumph of Life |
2008 |
| Oak & Bone - Oak & Bone | Hex |
2009 |
| Obscurus Advocam - Verbia Daemonicus | Battle Kommand |
2007 |
| The Ocean - Precambrian | Metal Blade |
2008 |
| Oceans - Nothing Collapses | Copper Lung |
2009 |
| Oceansize - Effloresce | Beggars Banquet |
2004 |
| Oceansize - Frames | Superball |
2007 |
| Oceansize - Music for Nurses | Beggars Banquet |
2004 |
| Ocrilim - ANNWN | Hydra Head |
2008 |
| Oddateee - Halfway Homeless | Deadverse |
2008 |
| Odious Mortem - Cryptic Implosion | Willowtip |
2007 |
| Oedipus - Covetous | The Den Recorders |
2008 |
| Of Faith and Fire - Battleborn | Helicopter |
2005 |
| Of Montreal - Satanic Panic in the Attic | Polyvinyl |
2004 |
| Off Balance - Demo | Hatecore |
2006 |
| Off With Their Heads - From the Bottom | No Idea |
2008 |
| Offsides - It's a Struggle to Communicate | Get Outta Town |
2008 |
| The Offspring - Rise and Fall, Rage and Grace | Columbia |
2008 |
| The Offspring - Splinter | Sony |
2004 |
| Okie Dokie - Okie Dokie | Aagoo |
2009 |
| Okkervil River - The Stage Names | Jagjaguwar |
2007 |
Okkervil River - The Stand Ins  | Jagjaguwar |
2008 |
| Old Canes - Early Morning Hymns | Second Nature Recordings |
2004 |
| The Old Haunts - Poisonous Times | Kill Rock Stars |
2008 |
| Old Man Gloom - Christmas | Tortuga Recordings |
2004 |
| Old Man's Child - Slaves of the World | Century Media |
2009 |
| Old Sun - Old Sun | Faux Fetus |
2006 |
| Olympia - Emergencies | Equal Vision/Hope Division |
2007 |
| Om - Conference of the Birds | Holy Mountain |
2006 |
| Om - Pilgrimage | Southern Lord |
2007 |
| Omar A. Rodriguez-Lopez - A Manual Dexterity: Soundtrack Volume 1 | GSL |
2004 |
| Omar Rodriguez - Omar Rodriguez | Willie Anderson |
2006 |
| On a Warpath - On a Warpath | Hand of Hope |
2006 |
| On Fire - This Time it is Forever | Magic Bullet |
2004 |
| On Our Own / Under One Flag / Your Mistake - Split | True Destiny |
2005 |
| On the Outside - Tragic Endings | Thorp |
2005 |
| On Three - No More Excuses | Strikin' Out |
2007 |
| Once Nothing - First Came the Law | Solid State |
2008 |
| The One A.M. Radio - This Too Will Pass | Dangerbird |
2007 |
| One Day as a Lion - One Day as a Lion | Anti |
2008 |
| One Dead Three Wounded - Paint The Town | Lovelost |
2004 |
| One Starving Day - Atlas Coelestis | Beta Lactam Ring/Nar Shardaa |
2010 |
| One Starving Day - Broken Wings Lead Arms to the Sun | Planaria |
2007 |
| One Step Forward - Positive Thinking | Our Pride |
2006 |
| One Win Choice - Define/Redefine | Jump Start |
2009 |
| One Win Choice - Never Suspend Belief | Jump Start |
2007 |
| Onelinedrawing - The Volunteers | Jade Tree |
2004 |
| Only Crime - Virulence | Fat Wreck Chords |
2007 |
| Only Thieves - Greeting from Levy Park, T.L.H. | Independent |
2009 |
| Ophiolatry - Transmutation | Forces of Satan/Regain |
2008 |
| Orange Island - Orange Island | Triple Crown |
2003 |
| The Orangeburg Massacre - Moorea | Pluto |
2007 |
| Oren Ambarchi - In the Pendulums Embrace | Southern Lord |
2007 |
| Orgone - The Goliath | Independent |
2007 |
| ORSO - Ask Your Neighbor | Contraphonic |
2008 |
| Orthodox - Gran Poder | Southern Lord |
2006 |
| The Oswald Effect - Love & Sabotage | Independent |
2008 |
| Our Final Say - Same Mistakes | This Blessing, This Curse |
2005 |
| Our Resolve - Demo | Independent |
2007 |
| Our Times - Our Times | Headcount |
2006 |
| Out to Sea - Mouth Like a Sailor | Independent |
2008 |
| Outbreak - Failure | Bridge Nine |
2006 |
| Outbreak - Work to Death | Think Fast! |
2009 |
| Outclassed - This Might Be Coincidence... | Forcefield |
2009 |
| Outkast - Idlewild | LaFace |
2006 |
| Outkast - Speakerboxxx/The Love Below | La Face |
2003 |
| Outrage - Broken | Panic |
2009 |
| Outrage - Savior | Panic |
2008 |
| The Out_Circuit - Pierce the Empire with a Sound | Lujo |
2008 |
| Over My Dead Body - Sink or Swim | Indecision |
2003 |
| Over Stars and Gutters - Consider This Your Curse | Independent |
2009 |
| Overcast - Reborn to Kill Again | Metal Blade |
2008 |
| Overmars - Born Again | Crucial Blast |
2009 |
| Owen - At Home with Owen | Polyvinyl |
2006 |
| Owen - New Leaves | Polyvinyl |
2009 |
| Oxbow - Love That's Last: A Wholly Hypnographic & Disturbing Work Regarding Oxbow | Hydra Head |
2006 |
| Oxbow - The Narcotic Story | Hydra Head |
2007 |
| Oxes - Oxes EP | Monitor |
2005 |
| Ozma - Pasadena | About a Girl |
2007 |
| Ozma - Spending Time on the Borderline | Kung Fu |
2003 |
