Surface RT won't play WAV files? Sheesh! I plan on recording to WAV, maybe even editing. Such functionality aught to be there right out of the box.
PS: Navigated into [C: > Windows > Media] folder, and selected on a file with the headphones icon. By viewing its details, it shows this is a WAV file. But when I try to execute or play it, SurfaceRT tries to send me to the xbox music service! Arrgh, I have no wifi, am in Airplane Mode. Very frustrating. Surely, there is software in Surface to play WAV, because it does make sounds and those sounds are surely WAV files.