Having given up making an OS X bootable CD for my G4 Ti, I reverted to putting all of my utilities (Disk Warrior, TechTool Pro, Plus Optimizer, etc) on an OS 9 bootable CD burned from a volume on which the 9.2.2 minimum system (from the Ti CD) was installed. The burn went fine from Toast but, ugh, it wouldn't boot the Ti????
So I did the exact same thing using Toast on a machine running OS9, and everything worked fine. Maybe because Toast pulls something from OS9 to make a bootable CD? In any event, the CD works great and all of the repair utilites do fine on my disks running 10.1.4.
Hope someone finds this of use.
Mac OS X Hints
http://hints.macworld.com/article.php?story=20020516095213116