why make wav md5s? 1 problem I see with this is if your wav files have extra data in the header and the conversion to flac removes it. The decode from flac to wav would create a wav file with identical audio data, but the headers wouldn't be the same, and your md5s would never match even though the audio was 100% the same
old habit, I guess. but I do always check to make sure that my WAV headers are "standard" without any extra data, before I make my WAV md5's and then encode to FLAC. I've tested many of my file sets, and the decoded WAV's always match the original WAV md5.