Unable to boot F12 PPC dvd on Powerbook G4

[JD]

  Greetings,
I downloaded and burned the DVD iso for F12
from a fedora mirror
http://mirror.anl.gov/pub/fedora/linux/releases/12/Fedora/ppc/iso/
After I burned it, I dd'ed  it into a temp file and compared
the md5sum of the temp file against the md5sum of the downloaded file.
Identical - so the burn was good.

I tried to boot it.
At boot, The

boot:

prompt comes, and I just press enter.

I get a blank white screen and nothing else happens.

Hope someone can help me get it installed.

Cheers,

JD