I thought that that Sony's Wav Converter would not allow conversions to WAV if the source was from a digital source. Are you saying that you recorded your audio with a "MIC" or "Line In" to the PCM format on HiMD?
In that case I can see the Wav Converter working with that. Oh, and I thought that the trasfer from HiMD to computer would be faster than that. Why did it take so long?