| Microsoft DirectX 9.0 |
The following table describes the stream media subtypes.
| GUID | Description |
| MEDIASUBTYPE_AIFF | Data from AIFF file |
| MEDIASUBTYPE_Asf | Advanced Systems Format (ASF) |
| MEDIASUBTYPE_Avi | Data from AVI file |
| MEDIASUBTYPE_AU | Data from AU file |
| MEDIASUBTYPE_DssAudio | Dss Audio |
| MEDIASUBTYPE_DssVideo | Dss Video |
| MEDIASUBTYPE_MPEG1Audio | MPEG audio |
| MEDIASUBTYPE_MPEG1System | MPEG system |
| MEDIASUBTYPE_MPEG1SystemStream | Obsolete. Do not use. |
| MEDIASUBTYPE_MPEG1Video | MPEG video |
| MEDIASUBTYPE_MPEG1VideoCD | MPEG video CD |
| MEDIASUBTYPE_WAVE | Data from WAV file |
Time stamps are byte positions * 10000000 (notionally 1 byte per second) rather than real times.