A disc properties object created by MediaWriterDrive.CreateDisc
No data is written to the disc during the test. This function might be used to verify the data to be burned. The write tests are not supported for media of type DVD+RW. NOTE: Do not call this function when MediaWriterDrive.CurrentDiscType indicates the current disk is of type LTDVDBurner_DiscType_DVDPLUSRW. If an error occurs a Win32Exception will be thrown. Please Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.