ubuntu live dvd 32bit and 64bit in one dvd

http://www.pendrivelinux.com/boot-multiple-iso-from-usb-multiboot-usb/

You can make an ISO of the final thing and burn it. That just uses a USB for the final item

@actionparsnip: thanks

but i am planing to make 50 copies of these dvds so i can i give them away in my collage
and i don't know what kind of hardware they have
this multiboot usb can be helpful if the want it on usb
thank you again but i still need an answer

thanks
this maybe can do the trick

if you don't mind i there a way to get ubuntu 32bit iso with the PAE kernel

Thanks actionparsnip, that solved my question.

You could customize to ISO to add the PAE kernel and remove the generic, then burn that ISO

but the PAE kernel don't have update like the generic

Sure it does. If you install linux-image-generic-pae as a package it will upgrade like any other kernel. What makes you think the PAE kernel doesn't get updates!!?

some one told me that pae kernel is custom made
so i though that it had no supports

thank you for the info