You can create a DVD that contains both versions of the live CD: Download ubuntu-13.04-desktop-i386.iso and ubuntu-13.04-desktop-amd64.iso . Create a folder structure for the DVD: $ mkdir -p ubuntu-13.04-desktop-i386-amd64/boot/{grub,iso} $ mv ubuntu-13.04-desktop-{i386,amd64}.iso ubuntu-13.04-desktop-i386-amd64/boot/iso/ Save the following as ubuntu-13.04-desktop-i386-amd64/boot/grub/grub.cfg : # Derived from /boot/grub/loopback.cfg from ubuntu-13.04-desktop-i386.iso and ubuntu-13.04-desktop-amd64.iso. menuentry "Try Ubuntu without installing (32-bit)" { loopback iso /boot/iso/ubuntu-13.04-desktop-i386.iso linux (iso)/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper iso-scan/filename=/boot/iso/ubuntu-13.04-desktop-i386.iso quiet splash -- initrd (iso)/casper/initrd.lz } menuentry "Try Ubuntu without installing (64-bit)" { set gfxpayload=keep loopback iso /boot/iso/ubuntu-13.04-desktop-amd64.iso linux (iso)/ca...