Hi MarkeyJester. I'm interested in using the core yamaha (including other hardware) in ways not imposed by Sega's SDKs (assuming they're real). E.g. the core yamaha can't play samplerates above 16khz according to Sega sdks, but if I can buffer two 8-bit channels at 22050khz each (or 44100khz stereo) then I can get some more flexibility from the yamaha. I'm guessing this MegaPCM has coincidence with my curiosity... I'm also looking for any genuine documents and/or datasheets for the core yamaha unrelated to Sega. Same request for other hardware in MarsCD.