| ogv | Ogg Video |
| on2 | on2 VP6 Encoded Flash Video |
| orv | Oracom Video File |
| otrkey | OnlineTvRecorder Encoded Video |
| oxa | Vertigo XG Cel Animation File |
| oxi | Vertigo XG OXI Animation File |
| pgi | Panasonic SD Recorder Timestamp Data |
| pjs | Phoenix Japanimation Society Subtitle |
| pmf | Sony PSP Movie File |
| pmp | Portable Media Player Video |
| pmpd | Panasonic HD Camcorder File |
| prores | Apple ProRes Video |
| ps | MPEG Program Stream Data |
| psb | PowerDivX Subtitle |
| pva | PVA Video |
| pvr | Personal Video Recorder Video |
| pxm | PCSX Captured Movie |
| pxv | Nexilogic Pixbend Media File |
| pyv | Microsoft PlayReady Video |
| qcif | CIF RAW Video File |
| qlv | Tencent QLV Video |
| qmx | Quantum Streaming Video Stream Control Data |
| qqq | TotalFix Fixed AVI Video |
| qt | QuickTime Movie |
| qtm | QuickTime Movie |
| qtz | Quartz Composer Composition |
| ravi | Optiris PI Radiometric Video Sequences |
| rcrec | LogMeIn Pro Remote Control Session Recording |
| rdg | Morae Recorded Video |
| rf | RealFlash Clip |
| rm | RealMedia File |
| rmd | REDCODE Metadata |
| rmf | RealMedia File |
| rmhd | RealMedia HD Video |
| rms | Secured RealMedia File |
