| O Brother, Where Art Thou? (2000) | 1 | USA | Keep | NTSC | 2.35 : 1 | Anamorphic Widescreen | 21654 |
| 2-Disc Keep | 1.85 : 1 | Anamorphic Widescreen Pan & Scan | VM7911D |
| Oasis:... There and Then (1996) (V) | 1 | USA | Keep | NTSC | 1.33 : 1 | Video | EVD 54017 |
| Obeo deo reinbou (2002) | 1 | USA | Keep | NTSC | 1.33 : 1 | Academy Ratio | SHO130 |
| Object of Beauty, The (1991) | 1 | USA | Keep | NTSC | 1.33 : 1 | Pan & Scan | DV11414 |
| Oblivion (1994) | 1 | USA | Snap | NTSC | 1.33 : 1 | Academy Ratio | 65250 |
| Ocean's Eleven (2001) | 1 | USA | Keep | NTSC | 1.85 : 1 | Anamorphic Widescreen | 22634 |
| 2.35 : 1 | 21494 |
| Ocean's Eleven Story, The (2001) (V) | 2 | Germany | Snap | PAL | 2.35 : 1 | Anamorphic Widescreen | 2218595 |
| Oceanscapes (1996) (V) | 1 | USA | Keep | NTSC | 2.40 : 1 | Anamorphic Widescreen | WARD38948D |
| Octopussy (1983) | 1 | USA | Keep | NTSC | 2.35 : 1 | Anamorphic Widescreen | 1001095 |
| 2 | Germany | PAL | unknown |
| Odd Couple II, The (1998) | 2 | UK | Snap | PAL | 2.35 : 1 | Anamorphic Widescreen | 16205DVD |
| Odyssey, The (1997) (TV) | 1 | USA | Keep | NTSC | 1.33 : 1 | Pan & Scan | 12298 |
| Oedipus Rex (1957) | 1 | USA | Keep | NTSC | 1.33 : 1 | Pan & Scan | 12039 |
| Off the Map (2003) | 1 | USA | Keep | NTSC | 1.85 : 1 | Anamorphic Widescreen | FLV5344 |
| Officer and a Gentleman, An (1982) | 1 | USA | Keep | NTSC | 1.85 : 1 | Anamorphic Widescreen | 014674 |
| Oggi a me... domani a te! (1968) | 2 | Germany | Keep | PAL | 1.85 : 1 | Anamorphic Widescreen | unknown |
| Oklahoma! (1955) | 1 | USA | Keep | NTSC | 2.20 : 1 | Letterbox | 4110865 |
| Oliver! (1968) | 2 | UK | Keep | PAL | 2.35 : 1 | Anamorphic Widescreen | CDR 10048 |
| Oliver's Story (1978) | 2 | Germany | Keep | PAL | 2.35 : 1 | Anamorphic Widescreen | unknown |
| Oliver & Company (1988) | 2 | Germany | Keep | PAL | 1.66 : 1 | Anamorphic Widescreen | unknown |
| Omen, The (1976) | 1 | USA | Box Set | NTSC | 2.35 : 1 | Anamorphic Widescreen | 2000451 |
| 2 | Germany | PAL | unknown |
| Keep |
| On Any Sunday (1971) | 1 | USA | Keep | NTSC | 2.35 : 1 | Anamorphic Widescreen | 2000448 |
| On Golden Pond (1981) | 1 | USA | Snap | NTSC | 1.85 : 1 | Letterbox | 60479 |
| On Her Majesty's Secret Service (1969) | 2 | Germany | Keep | PAL | 2.35 : 1 | Anamorphic Widescreen | unknown |
| On Location: Where Eagles Dare (1968) | 1 | USA | Keep | NTSC | 2.35 : 1 | Anamorphic Widescreen | 908128 |
| On the Beach (1959) | 1 | USA | Keep | | 1.78 : 1 | Widescreen | TAI49674DVD |
| Once Upon a Time (1944) | 2 | Germany | Keep | PAL | 1.33 : 1 | Pan & Scan | 51958 |
| Once Upon a Time in America (1984) | 2 | Germany | Digipak | PAL | 1.85 : 1 | Anamorphic Widescreen | unknown |
| Once Upon a Time in Mexico (2003) | 1 | USA | Keep | NTSC | 1.85 : 1 | Anamorphic Widescreen | 20026 |
| Once Were Warriors (1994) | 2 | Germany | Keep | PAL | 1.85 : 1 | Anamorphic Widescreen | 74321 77569-9 |
| One Flew Over the Cuckoo's Nest (1975) | 2 | Germany | Snap | PAL | 1.85 : 1 | Anamorphic Widescreen | unknown |
| Keep |
| Snap | 36222 |
| One Small Hero (1999) | 1 | USA | Keep | NTSC | 1.77 : 1 | Anamorphic Widescreen | 22674 |
| One True Thing (1998) | 2 | Germany | Keep | PAL | 1.85 : 1 | Anamorphic Widescreen | 29933 |
| One Way Out (2002) (V) | 1 | USA | Keep | NTSC | 1.85 : 1 | Anamorphic Widescreen | 20440 |
| One Week (1920) | 2 | Germany | Keep | PAL | 1.85 : 1 | Anamorphic Widescreen | unknown |
| One, Two, Three (1961) | 1 | USA | Keep | NTSC | 2.35 : 1 | Anamorphic Widescreen | 01229 |
| Onmyoji (2001) | 1 | USA | Keep | NTSC | 1.85 : 1 | Anamorphic Widescreen | 12043 |
| 12044 |
| Onmyoji 2 (2003) | 1 | USA | Box Set | NTSC | 1.85 : 1 | Anamorphic Widescreen | 12374 |
| Operation Amsterdam (1959) | 1 | USA | Keep | NTSC | 2.35 : 1 | Anamorphic Widescreen | DV11853 |
| Operation Dumbo Drop (1995) | 1 | USA | Keep | NTSC | 1.78 : 1 | Letterbox | 906563 |
| Orange County (2002) | 2 | Germany | Keep | PAL | 1.85 : 1 | Anamorphic Widescreen | P 452517 |
| Orca (1977) | 2 | Germany | Keep | PAL | 2.35 : 1 | Anamorphic Widescreen | unknown |
| Order, The (2001) | 1 | USA | Keep | NTSC | 1.33 : 1 | Video | PH90759 |
| Ordinary Decent Criminal (2000) | 1 | USA | Keep | NTSC | 1.85 : 1 | Anamorphic Widescreen Pan & Scan | 2220206 |
| Ordinary People (1980) | 2 | Germany | Keep | PAL | 1.85 : 1 | Anamorphic Widescreen | unknown |
| Original Dirty Pair Vol. 2 (1999) (V) | 1 | USA | Keep | NTSC | 1.33 : 1 | Video | DOD001 |
| Original Dirty Pair Vol. 3 (1999) (V) | 1 | USA | Keep | NTSC | 1.33 : 1 | Video | DOD002 |
| Original Dirty Pair Vol. 4 (1999) (V) | 1 | USA | Keep | NTSC | 1.33 : 1 | Video | DOD003 |
| Original Dirty Pair Vol. 5 (1999) (V) | 1 | USA | Keep | NTSC | 1.33 : 1 | Video | DOD004 |
| Orion's Key (1996) | 2 | Germany | Keep | PAL | 2.35 : 1 | Anamorphic Widescreen | unknown |
| Oro diablo (2000) | 1 | USA | Snap | NTSC | 1.33 : 1 | Video | ID 5790 RADVD |
| Orphans of the Storm (1921) | 0 | USA | Snap | NTSC | 1.33 : 1 | Academy Ratio | ID 4676 DSDVD |
| Osmosis Jones (2001) | 1 | USA | Snap | NTSC | 2.35 : 1 | Anamorphic Widescreen | 21323 |
| Oso rojo, Un (2002) | 2 | Germany | Keep | PAL | 2.35 : 1 | Anamorphic Widescreen | unknown |
| Other Sister, The (1999) | 2 | Germany | Keep | PAL | 1.85 : 1 | Anamorphic Widescreen | 34640 |
| Others, The (2001) | 1 | USA | Keep | NTSC | 1.85 : 1 | Anamorphic Widescreen | 24168 |
| Ottmar Liebert + Luna Negra: Live - Wide-Eyed + Dreaming (1994) (V) | 2 | Germany | Keep | PAL | 1.78 : 1 | Anamorphic Widescreen | HOA00445 |
| Our America (2002) (TV) | 2 | Germany | Super Jewel | PAL | 2.35 : 1 | Anamorphic Widescreen | 74321 75283-9 |
| Out of Bounds (2004) | 1 | USA | Keep | NTSC | 1.85 : 1 | Anamorphic Widescreen | 20250 |
| Out of Sight (1998) | 1 | USA | Keep | NTSC | 1.85 : 1 | Anamorphic Widescreen | 20340 |
| 20589 |
| 2 | Germany | PAL | unknown |
| Out of Time (2000) (TV) | 2 | Germany | Keep | PAL | 1.85 : 1 | Anamorphic Widescreen | 29955 |
| Outbreak (1995) | 1 | USA | unknown | NTSC | Various | Anamorphic Widescreen | 31421 |
| Outlaw Justice (1999) (TV) | 2 | Germany | Keep | PAL | 2.35 : 1 | Anamorphic Widescreen | 12588 |
| Outta Time (2002) | 1 | USA | Snap | NTSC | 2.35 : 1 | Anamorphic Widescreen Pan & Scan | 11310 |
| Over the Wire (1996) | 2 | Germany | Keep | PAL | 2.35 : 1 | Anamorphic Widescreen | unknown |
| Owl and the Pussycat, The (1970) | 1 | USA | Keep | NTSC | 1.33 : 1 | Pan & Scan | 08902 |
| Owning Mahowny (2003) | 2 | Germany | Keep | PAL | 2.35 : 1 | Anamorphic Widescreen | unknown |