Problems restarting from C drive with Tech Tools 3.0.4 -OS 10.4.7

Question

I have a TechTools CD sent to me by Apple for purchasing the protection plan. When i attempt to start up with that disk by holding C, the drive does not recognize the disk and i get the "no smoking sign" where the apple goes on the gray screen. I also have a Disk Warrior CD and it also is not recognized. I've also tried other methods of choosing both disks and neither are recognized. I've called Apple 3 times on this, and no one has been able to tell me why. They have sent me a new Tech Tools disk which still doesnt work, and now they are telling me it is a compatibility issue. What i want to know is, if it's a computability issue then is there anyone else in here who has this problem?? The lady at Apple had said she'd never heard of it so my thinking is the answer she gave me is b.s.
My mac is version 10.4.7 and my Tech Tools is version 3.0.4
HELP PLEASE??
iMac G5 iSight   Mac OS X (10.4.7)  
iMac G5 iSight   Mac OS X (10.4.7)  

Answer 1

But my question is, if this is a compatibility issue then why doesnt EVERYONE who bought my computer and got the TechTools disk from apple having the same problem?? I don't understand why they would send me a disk that was useless to me. Shouldn't someone know that this disk is supposedly incompatible??
I agree that it reduces the value of the TTD disk substantially, TrtlAtak.
Essentially the problem occurs because the disc contained in the Applecare package is often out of date, containing a system too old to start your computer. Sometimes the software itself is also out of date and should not be used until it has been updated. It depends partly on how long the particular package you receive has been sitting on the shelf, and partly on how long since a new version of the update has been provided.
The problem with the software occurs because Micromat often take a long time to update TechToolDeluxe for use with new systems. (As you have probably guessed, I'm not overly impressed with the TTD compnent of Applecare)
Remember there are TWO issues here, not just one. Firstly the CD has to have an appropriate operating system on it to start your computer. Secondly it has to have a version of TTD on it which is compatible with the OS on your computer.
In your case , the link to https://support.apple.com/techtooldeluxe/main?id=dl SHOULD , however, provide you with a disc which is capable of starting up your iMac G5 iSight (and with an appropriate version of TTD for use with it).
Any chance the caps lock key was down when you attempted to startup using the c key? This will prevent bootup from CD. (Its "c" that needs to be held down , not "C").
Secondly, you could try holding down the "option" key instead while you start up, with the CD in the drive. This should allow you to select which particular drive you wish to start from (the HD or the optical drive).
Thirdly, with the Disc in the drive, you could see if it appears as a "startup disc" choice whe you go to SystemPreferences / StartupDisc. If so, select it, and restart your computer.
There are other things that can prevent your Mac startingup from a CD or DVD. If you have an "open firmware" password installed on the computer, for example, it can't be started from an optical drive. Some third party keyboards also will not let you start up in this fashion.
Cheers
Rod