I have a iPaq, and i use Auto-frameskip with sound (best results on all models). IPaq uses a 206mhz processor vs. casio uses around 156(?)mhz so results may very, but it should still play decent even then. Don't use the stretch feature, could impare results. Plus it's not really needed anyway. I've been following all versions since early. I am waiting myself for a portrait mode. THAT would be awesome.