| Oakenfold, Paul | Selections from Perfecto Presents Another World (promo) | US | CD | mint | 8 track album sampler, including remixes for Led Zeppelin, Dead Can Dance, Tone Depth & others | $15 |
| Oasis | Click here for Oasis items | |||||
| Ocean Colour Scene | Beside Ourselves | JP | CD | mint with obi | Japan only compilation of B-sides, 8 tracks |  |
| Sinead O'Connor |  Collaborations |
JP | CD | new & sealed | compilation of Sinead collaborations, 17 tracks, features Massive Attack, U2, Moby, Terry Hall, Bomb The Bass, Jah Wobble, Peter Gabriel and more | $24 |
| Sinead O'Connor | The Emperor's New Clothes | JP | CD | near mint | 5 tracks | |
| Octopus | From A to B | UK | CD | mint | 15 tracks in unique 'game board' sleeve | $14 |
| Offspring | Original Prankster | JP | CDS | mint with obi | 3 tracks | $12 |
| Mike Oldfield |  Tubular Bells (1st ed) |
JP | CD | ex/mint with obi | very rare 1st edition Japan CD released in 1987, with insert, 32VD-1010 | |
| Mike Oldfield | Women of Ireland | UK | CDS | mint | enhanced CD with a video | $12 |
| OMD | Liberator | JP | CD | mint without obi | $18 | |
| OMD | Live And Die | JP | 7" | mint | with an insert | |
| OMD | Sailing On The Seven Seas (sample) | JP | CDS | mint without obi | rare Japanese single, 4 tracks in slim case | $18 |
| Ooberman |  Hey, Petrunko Plus |
JP | CD | mint | Japan only 20 tracks, 10 tracks from second album, 6 from singles, 2 unreleased + 2 videos, in digipak with booklet | $28 |
| The Open | Close My Eyes | UK | CDS | mint | 3 tracks in card sleeve | $5 |
| Opus III | Mind Fruit | JP | CD | sealed | sample | |
| Orange Deluxe (ex-Five Thirty) |
Necking | JP | CD | excellent | with 3 bonus tracks | $16 |
| Orange Deluxe (ex-Five Thirty) |
Votka Doughnuts & Dole | JP | CD | sealed | with 3 bonus tracks, sample | $20 |
| Orange Juice | The Very Best Of (sample) | JP | CD | mint without obi | 22 tracks with an insert | |
| Orb | Orbvs Terrarvm | JP | CD | mint with obi | 7 tracks, 1995, PHCR-1777 | |
| Orb | Pomme Fritz | JP | CD | mint with obi | very scarce OOP Japan CD, 6 tracks | |
| Orbital | Blue Album (promo) | JP | CD | mint | mega rare Japanese promo only CD, 10 tracks including a bonus track Initiation, in slim case with booklet, click the title to see inside the booklet | $35 |
| Orbital |   In Sides (ltd.ed) |
JP | 2CD | mint without obi | 8 track CD + bonus CD The Box (28 min.) in card sleeve (picture below), with insert | $28 |
| Orbital |  In Sides +5 |
JP | 2CD | mint with obi | Japan only special edition with 5 track bonus CD, 2 tracks from the Saint and 3 live tracks, with insert, POCD-1252/3 | $35 |
| Orbital | Middle Of Nowhere | JP | CD | mint with obi | OOP Japan CD, 8 tracks with insert | |
| Orbital |  Orbital |
JP | CD | mint with obi | very scarce Japanese debut album, 10 + 1 hidden track, with insert | |
| Orbital | Peel Session | JP | CDS | mint/ex with obi | 4 tracks, Japan tour special edition | |
| Orbital |  The Saint (sample) |
JP | 3"CDS | new & sealed | very scarce Japanese 3"single in 5" jewel case, 2 tracks | $18 |
| Orbital | Snivilisation | JP | CD | mint with obi | 10 tracks with Japanese insert | |
| Orbital and Angelo Badalamenti | Beached | JP | CDS | mint with obi | very scarce Japanese single, 3 tracks in slim case | $18 |
| The Ordinary Boys |  Brassbound (ltd.ed) |
JP | CD | new & sealed | Japan exclusive limited edition with 9 bonus tracks, total 21 tracks, WPCR-12236 | $28 |
| The Ordinary Boys | Over The Counter Culture (promo) | JP | CDR | mint | 12 track CD-R promo in slim case with inlay | $15 |
| Orton, Beth | Daybreaker (promo) | JP | cassette | mint case - sctrached |
10 tracks | $18 |
| Ouch! |  Endless Daze (sample) |
JP | CDS | new & sealed | 4 tracks | $10 |
| Owen, Mark | Clementine | JP | CDS | mint with obi | 5 tracks, picture label, sample | $13 |
| Owen, Mark | Green Man (ltd.ed.) | JP | CD | new & sealed | limited edition with a poster and bonus tracks, in slipcase, sample | $14 |
