Hie,
I tried to install OS X on a friend's lappie (HP dv9205eu). None of the followings dvd worked : Zephiroth 10.5.2 (don't know if rev1 or 2), Kalyway 10.5.2, iDeneb v1.3 (ppf patched). First ones simply don't boot with the error : "can't find com.apple.Boot.plist", and the later stopped at "still waiting for root device".
According to windows ( :s ) it has a nForce 430/410 sata chipset, but dvd player is on the 1st IDE channel.....

Dunno what to do .....


PS : i tried these dvd on my pc : the all work fine.

I know it may sound weird, anyway, here is how i solved same problem:
enter pc's bios with installation dvd inserted
quit discarding changes(press f12): you need to do so as not to let pc reboots.
OK, now you can install.

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Acer Aspire 5220 MacBookPro (10.5.4)
AMD TJ43 dual core Sempron nforce 560 SATA controller
NVIDIA GeForce 7000M