I'm trying to install Mac OS 9 on my Power Mac G4, which is an MDD model, without FireWire 800, so it supports booting to Mac OS 9. The thing is, when I bought the machine, I don't seem to be able to use the Mac OS 9 CD that I got with the computer. I know this because it will not boot to the CD at all from Open Firmware, Mac OS X 10.5 (which I have since wiped in my attempts to install OS 9), by holding the "C" key or by holding the "Option" key. I also see on the disk that it has a copyright date of 1999, where the Power Mac G4 MDD models require a specific version of Mac OS 9 to boot to, which I don't have. The disk would have to say 2003 on it. I did a search on eBay, and it yielded what appears to be a Mac OS 9 disk specific to the Power Mac G4, and I would buy it, however, with the money I have, I need to either buy an upgrade GPU for this Power Mac or a new screen for my netbook. So, besides that, there's nothing else that I can find on the internet. I'm gonna get shot for this, but I need some help. Is there a way to get my OS 9 CD to boot on my Power Mac? Are there files or lines of code that I need to modify, add or change? ---------- Actually, I think I may have just answered my question. I found a copy of OS 9.2.2 for the Power Mac G4 MDD on Macintosh Garden (I didn't pirate it! If I get into a mess, it wasn't my fault because Macintosh Garden is supposed to give out free to download software or abandoned software!). Well, that's what it says. We'll see for sure.