We are testing GoodLink on a few of the new Cingular 8125's. We love the new devices so far but we've found that we cannot listen to .wav files. We're getting the error "cannot play back the audio stream: the audio format is not supported". Does anyone know of a program that is compatible with Windows mobile 5.0 devices for listening to .wav files? I'd prefer a free one but we'll buy one if there aren't any free ones available. Thanks!