Well,i do have Galaxy Fraulein Yuna Demo CD,i posted pic in my album
Check my PC Engine Mooks picture,you'll see The 2 Super PC Engine Fan issues ( with CDs inside ),as well as the 2 PC Engine Fan issues containing PC FX Demo CDs...that means i have 67 of the 70 titles listed in the list you provided..i just don't have those 3 "PC-FX Mooks",and i never saw them...did you ever see those?