Sorry to Yell but..... It seems Windows 10 is corrupting WAV files on the source card. If this is widely known I will delete this post immediately. It is news to me. I am using approved, 633 formatted cards. When I load cards up on Windows 10 they show encrypted. If I switch to my MacBook Pro they show encrypted. If I put them back on the 633 they are unreadable.
There is a Windows 10 thread that discusses this towards the end but I want to make sure it is up front on the forum. If there is a fix please let me know.