@gordoooo_z Would it be helpful to you if I make in image of my MacMini G4 installation media with Mac OS X 10.4 and make it available for download? It's labeled "MacMini Installation Media", but it shouldn't be model-specific, I have used it to install Tiger to my PowerMac G5 without any issues. I think it might help solve your issue as retail DVDs of 10.4 were universal PowerPC/Intel, this one isn't.