Our church has replaced a failing Roland XP50 (nine years old) with a WK3500 a few months ago which I am slowly coming to grips with thanks to Jim and Stephen's sites, you guys are Legends.
Q1: I have tried to purchase smartmedia cards here in Country Australia and been informed that they will soon be out of production and are being replaced by SD cards, which are not compatible with WK series. Any truth in this?
Q2: Roland XP50 had a PANIC button that would stop "stuck" notes (ones that keep sounding after song had finished). Only way I have found to stop these on WK3500 is to press DEMO and then STOP buttons.