Hi,
Yes people use mp3 players in Antarctica, over 20 years ago I remember walking around sometimes listening to my casette walkman as many other people did, so the technology might be new, but the idea isn't.
It just so happens I came across this page the other day which you might find relevant:
http://www.antarctica.ac.uk/indepth/camping/page2.php
there are people who read this forum from Antarctica, though they rarely join in things like this - you never know, you may be lucky.