@mitu Sorry... please ignore! "Generally speaking, raspi-config aims to provide the functionality to make the most common configuration changes. This may result in automated edits to /boot/config.txt"
Been awhile since I've updated on this project. Ran into some hiccups and progress has slowed. The dvd drive was unstable as it wasn't getting enough power, adding a powered usb hub and a separate power supply to help with this. However unless I get help from a programmer I dont think Ill be getting it to play PS1 discs anytime soon, However I can still save the disc to ram or sd card so not completely useless. I recently got my psx->usb adapter soldered in would rather go gpio but couldn't get it to work.
Purchased an arduino nano to make ORIGINAL psx memory cards hopefully run on the pi.