gc-dd

not really a satisfying solution, but: i noticed that the emulator crashes when you perform any next action while the sound is still playing. so try to take your time. let the sound play well out before you click anything. i usally put my sounds in functions, use dummy functions without sound as long as i'm testing and put the sound in again at the very end. the "real devices" do not seem to have that problem.

This is how it works in urwigo: You'll have to check for Environment.Platform. In case of "Vendor 1 ARM9" it's a Garmin device and you'll need to play an .fdl (can be made with System Beep Recorder, just google for it). All other devices will get a .wav.