I have a PAL model 2 Saturn that is already modified to switch between Europe, US and Japan regions and between 50/60hz. It's controlled with the reset button so I think it's this switchess mod.

Unfortunately it doesn't enable playing CD-Rs. Is it advisable to try and modify it further to get it to play CD-Rs or would I be best off getting an unmodified one?

What is the easiest mod for an amateur to install to play CD-Rs?

(If it makes a difference, I need to play CD-Rs because I'm trying to play the translated version of Shining Force 3).