With that option enabled the results should match native MD5 fields in various lossless formats.Users may take note of ("instead of worrying about") some differences here.
* Monkey's is an exception - it calculates on the encoded stream, but not the way foo_audiomd5 does.
* FLAC calculates MD5 from a signed little-endian representation of the audio - WavPack uses source file representation. So for WAVE input > 8 bits, and AIFC-sowt input, they agree. When you feed WavPack a big-endian source file (AIFF, AIFC-none, CAF-big) it calculates big-endian without translating, and when you feed WavPack an 8-bit WAVE it calculates unsigned without translating.