YDL on upgraded Powermac 9500 G3-450

[Dominique Werner]

Hello.

I hope you can help me install YDL on my upgraded Powermac 9500
Sonnet Crescendo G3 450mhz.

I burnt the ISO image as told on the website with Toast Titanium under 
Mac OS X but when I try to boot the Powermac
(Cyberdrive 24x SCSI CD-ROM and Adaptec 2930 SCSI Controller, 2GB 
Quantum Fireball (2 partitions, Mac OS 9.1 and one unallocated for 
Linux) - both drives are connected to the controller but won't work 
without it either)
the cd fails to mount, for whatever reason. I have the latest Mac OS 
driver for the Cyberdrive but I don't know if I'm missing additional 
boot parameters to get the Cyberdrive CD-ROM to see the CD.

Anyone knows what do do or has experience installing YDL on Old World 
ROM Powermacs? 

Thanks.

Regards / Gruss

Dominique Werner
dwerner1974@mac.com