live discs boot

Decided to rip my blu-rays and DVDs and store them on a hard drive and stream them to my TV, via PS4 and Plex. However, some of the blu-rays--such as bonus dics to music concerts--contain many 'separate' menus that are navigated via the menu. I use a Mac computer. When I ripped such a blu-ray...

This is the picture of the bios and what it looks like except when I look on the page of my computer there is no boot devices listed except for the internal HDD . If i try to add Cd rom it still does not work, please help! I am trying to boot from a puppy linux live disc , so that i could...