IMO, the .WAV MD5s are pointless. some might disagree, but i think that if you have a fileset with MD5s that all verify, and are identical to the ones others have posted at db.etree.org, then i don't see a problem with just seeding the SHNs with their own MD5s, eliminating the WAV MD5s totally. it's redundancy that they are good for, but not required.
of course, that's just my opinion. i could be wrong.
/wouldn't be an issue if everyone listened to me and converted their shit to FLAC...