The Parts CD will contain all of the parts for your Z-car!  It will also contain part numbers that your Nissan dealer will love.  This is an invaluable tool for anyone with a Z-car (within the years specified).  It will allow you the freedom to look up all the parts at your own leisure.  When you are ready to get pricing, just bring the list down to your dealer.  That's all!
It's also a very helpful tool when you are working on your Z.  The Parts CD will contain all diagrams necessary to complete the assembly of your car.  It has close up views of every single part on the car.  If you forgot how something bolts together, just consult your Parts CD.  You can also look at your manuals, but, who wants to get those dirty?!  With the Parts CD, you can print out the diagram on your printer and bring the single piece of paper into your garage.  If it gets dirty... just throw it away and print out another copy!  It's that simple!