I have learned over the years that it’s possible to recover data from damaged hard drives (as in extreme weather events) with help from Kroll Ontrack. The latter has done good work on some drives damaged in July 2013. I learned about the service from Walden Web Design.
I’ve also learned more recently that with you can recover erased WAV files from an SD card using EaseUS Data Recover Software.
I’ve also learned I can convert RIFF to WAV files using Switch Audio Converter,
I’m delighted that I have learned these things over the years.