I'm not positive, but I think I got them from APM Music, but they are no longer there, CAS is under Warner-Chappell now.
APM doesn't have .flac downloads, only .mp3, .wav, and .aiff
This is what is called mierenneuken in Dutch. It literally translates to ant f**ker, which means one who picks nits.
APM offers .wav you are right, but .flac is the same exact thing as .wav when decompressed. I converted the waves to .flac.
What is your point?