I recently acquired a PowerBook G4 (always loved the PPC architecture over Intel when it comes to Apple), currently it has OS X 10.4 installed.

Unfortunately I can't find the original 10.5 install disc I had, though I made an ISO of it some time ago, which I've now burnt to a DVD-R DL disc (the SuperDrive is a DVD-R only iirc). This disc keeps being ejected by the PowerBook G4 (reads other discs just fine, except one).

So I've been pondering doing a remote install, however the instructions I've seen are for MacBooks - I have DVD or CD Sharing installed, but the part in the instructions (http://guides.macrumors.com/Complete_Steps_to_Perform_a_Clean_OS_X_Reinstall_on_Your_MacBook_Air#Using_Remote_Install) about the 'Install Assistant', I don't get such a thing - only the BootCamp Installer.

So my question is: How do I go about doing a remote install on this PowerBook G4? Or is there another alternative, without forking out on a new drive?