Your game file is probably too big. See the optimizing performance 1 and 2 in stencylpedia. More likely, it is an incompatible sound. Use audacity to change your sounds to MP3. A way to check for an incompatible sound is to remove sounds and leave one only. Do this for all sounds. When your game crashes, you will see which sounds are not compatible. You probably don't want to do it that way. In this case, use log-viewer to see whether they are errors that keep your game from working.
