help installing Fedora 3

[Federico Romero]

Hi, i use Redhat 9, and im a linux newbbie, i downloaded Fedora Core 3 cds and i burn it,
but when i tried to install the next error appears...

crc error
VFS: cannot open root device "<NULL>" or unknown-block(8,3)
Please append a correct "root=" boot option
Kernel panic:VFS:Unable to mount root fs on unknown-block(8,3)


The cd is ok, but happens in 2 pcs.. i burned just de boot.iso, and the same problem...

My computer is a Amd Athlon XP 2600  
                          MSI Motherboard  
                          512 ram
                          2 hard drives
                          1 cd reader , 1 cd writer.


I was googling but i didnt find solution, anyone can help me ?

Thanks in advance


Federico

PS: sorry about my English