Thank you so much for this site and all the wonderful software & manuals etc to download!. Our Retro Computing Group is trying very hard to get a System 80 for it's collection and displays. If anyone can help, please contact us! http://shazam.zapto.org WE already have the X4010 expansion unit but need a System 80 and wonder also about compatible disk drives that we could use? ~From the past into the Future! The RCC, Retro Computing Cult http://shazam.zapto.org !!! :) .-.-.