adding an application to a live CD

[Eric S. Johansson]

I have an application I would like to demonstrates to a variety of customers and 
   the cost of installing it at every site is pretty high (for a demonstration) 
I would like to demonstrate it on a live CD (especially since I'm hoping to show 
them the advantages of ubuntu) and "add-on" the application from some external 
media like a flash thumb drive or a totally blank hard drive.  I'm also hoping 
that I can just make the application available on the net for anyone to download 
and try and out rather have them download a small package rather than a whole 
new CD image.

I would appreciate some guidance and direction to either the right mailing 
list/forum for discussing this or documentation sources.

Thanks in advance,
---eric