Error 0xC00D1BA2

Value: -1072882782 | 0xC00D1BA2 | 3222084514

What does it mean ?

NS_E_INPUT_WAVFORMAT_MISMATCH  
All the source .wav files must have the same format.
Value: 7074 | 0x1BA2 | 0b0001101110100010

Where does it come from ?

FACILITY_MEDIASERVER  
Windows Media Server
Value: 13 | 0x00D | 0b00001101

Other Errors for FACILITY_MEDIASERVER