A Sega Master System emulator going by the name of SMEG is currently in development, and the author has just put up a small site detailing the progress at http://www.kenseiden.com/smeg/ . The author has also posted cd a burning-friendly preview available for download from his site, which only plays the SMS game Kenseiden. Try it out, I HIGHLY recommend it! Currently the SMEG preview includes full speed, full screen, and perfect sound! Looks like Master System fans have finally gotten their wish.. there are currenlty 5(!) SMS emulators in development for Dreamcast.