Codec / format diff between WMP12 and IMFSourceReader

Hi,

is there a difference between the format / codec support in Windows Media Player 12 and the format / codec support using IMFSourceReader API?

I have a lot of AVI video files (e. g. with DV codec id dvsd, 720x576) which can be playback by the Windows Media Player but can not be opened by the IMFSourceReader.

IMFSourceReader* reader = nullptr;
HRESULT hr = MFCreateSourceReaderFromURL (wstring.data (), NULL, &reader);

The return value from MFCreateSourceReaderFromURL is "hr = 0xc00d36c4 : The byte stream type of the given URL is unsupported".

Are there any information showing these format / codec differencies?

best regards

saoirse