No Optical Drive: Putting TI and DD on Flash Drives?

In the past I have always had an optical drive and have accessed TI and DD by loading up the CD and booting from it. New computer will have no optical drive so I will have to boot the applications from a flash drive. Currently my versions date back to 2012. I will be getting new 2016 versions. So how does it work. Is there a particular version that I need to purchase that will allow me to install and then let me make bootable flash drive versions of TI and DD 2016? Can I put both TI and DD on the same flash drive? If so is there a link on how to do that? TIA.