Writing RIFF to WAV

[DDemole]

I'm looking at writing some metadata to WAV files. I have SoundMiner, but would rather do it programmatically since all my WAV files are contained on a webserver. I currently have to pull them off the webserver, run them through SoundMiner and then push them back up to the server.

I see that getID3() allows you view RIFF tag information on WAVs, but I can't find where you can write metadata to WAVs. Could someone point me in the right direction to some examples and/or documentation that shows how to actually write to the WAV file?

Thanks.