You only need to install this file in your DVD Image and burn it.
here is how:
Erase the Extensions folder of your DVD Image, copy this file to System/Library and burn to a DVD.
You will boot faster, less wait than the "retail" patched DVDs
Here is how I created it:
I mounted my BrazilMAC patched image of Leopard with readwrite ability, you can do that if you rename the ISO image to .cdr suffix
then I copied the contents of the Extensions folder to my Destop.
cp -R /Volumes/Mac\ OS\ X\ Install\ Disc\ x86/System/Library/Extensions Desktop/Extensions
or by opening the containing folder and dragged it to the Desktop
open /Volumes/Mac\ OS\ X\ Install\ Disc\ x86/System/Library/
then I make the cache with this on Terminal:
sudo kextcache -a i386 -k -z -m Desktop/Extensions.mkext Desktop/Extensions
I erased the Extensions folder from the mounted Image with the Finder or with this command on Terminal:
rm -fr /Volumes/Mac\ OS\ X\ Install\ Disc\ x86/System/Library/Extensions
then I copied the Extensions.mkext to the System/Library folder of the mounted image with Finder or wtih this command on Terminal:
cp Desktop/Extensions.mkext /Volumes/Mac\ OS\ X\ Install\ Disc\ x86/System/Library/
then I repaired the owner and group:
sudo chown root:wheel /Volumes/Mac\ OS\ X\ Install\ Disc\ x86/System/Library/Extensions.mkext
umount the image, burned it and tested it.
Other advantages is that you have a faster boot DVD in case of emergencies or if you need to a handy Disk Utility or Terminal Apps.
This could work with other patched DVDs (for Intel of course), also you can do your own Extensions.mkext, but try it with DVD RW media or you could end with a lot of coasters
I prefer to answer in this thread than by PM, if you have a question please post it here.
I tested with BrazilMAC and ToH DVDs on my Dell XPS M1330.
AMD version. tested with Prawker's method and ToH with AMD ppf V2