Statistik › Årtal › 1991
| Artist | Titel | Format | Ägare |
|---|---|---|---|
| Dire Straits (ENG) 0575* | On every street (Pop-rock) | LP | 1 |
| Dire Straits (ENG) A 1 | On every street (Pop-rock) | USB | 1 |
| A.R.G. | One World Without The End | LP | 1 |
| A.R.G. | One World Without The End (Black Mark) | LP | 1 |
| Mathews, Rick | Only The Young | CD | 1 |
| SPANGA | ONLY WORDS | PAPPCDs | 1 |
| Loudness | On The Prowl. | Vinyl Lp 9031-73694-1 | 1 |
| Nine Below Zero | On The Road Again | CD | 1 |
| MASTER | On the Seventh Day God Created Master | CD + DVD | 1 |
| MASTER | On the Seventh Day God Created...Master | Promo-CD | 1 |
| MASTER | On The Seventh Day God Created...Master | 12" | 1 |
| Porcupine Tree | On the Sunday of Life... | 1 | |
| Porcupine Tree | On The Sunday Of Life | CD | 1 |
| Porcupine Tree | On The Sunday Of Life... (digipak) | CD | 1 |
| Porcupine Tree | On The Sunday Of Life... (double 180 gram orange coloured vinyl, limited to 2000 copies) | 2LP | 1 |
| Germano, Lisa | On The Way Down From The Moon Palace | CD | 1 |
| Razor | Open Hostility (Fringe) | CD | 1 |
| Queensrÿche | Operation:LIVEcrime | VHS | 1 |
| Lidido Boyz (USA) 1100 | Opgu (Hardcore) | LP | 1 |
| Tool | Opiate | CD | 1 |
| Naughty By Nature | O.P.P | 7" | 1 |
| Naughty By Nature | O.P.P. | 12"Single | 1 |
| Naughty By Nature | O.P.P./Wickedest Man Alive | "12 | 1 |
| Erich Wolfgang Komgold | Orchestral Works 1 | CD | 1 |
| Demented Are Go | Orgasmic Nightmare | Cd | 1 |