ICS CUBE can be installed not only from a CD-disk, but also from a USB-drive.
First of all, you need to download a spesial image for USB-drive. You can download it here.
After that you can write it to a USB-drive with any utility for creation of boot drives (Rufus, for example).
At the end, plug USB-drive into USB-port of the computer that is meant to contain ICS CUBE and choose USB as a first bootable device in BIOS.
Attention: not all motherboards support installation from USB-drives!
When the image will be boot from USB-drive, the normal installation will begin.