installation help

[blasto911@libero.it]

I've got a new iBook G3 800 Mhz with internal sony dvd-cdrw, I had partit=
ioned my disk in 2 patitions in the firstone there's  Mac 
OS X in the s=
econdone I would install YDL3.0 but i'm not able because after the chosin=
g language the system doesn't recognoize 
me the cdrom unit where there'=
s the cd1 of YDL3.0, usually I start whit a non graphical procedure of is=
tallation.
thankl for any help.