Last time I went out, I found a voice recorder, lying on the ground. It had been out in the cold and wet for about a month. I emailed the people who had lost it to ask how to send it to them, but they'd bought a new one, and said I could keep the old one.
So I left it a couple of days to dry out, and when it looked OK, I switched it on, and I was suprised to see that it worked! I can't see how to insert a sound file into this blog. It lets me upload pictures and video, and an MP3 is neither of those.
But there's more than one way to skin a cat, and here's a way that might leave me with usable fur.
A test file
Let me know if you can play that.