Need some guidance

I wanted to ask how difficult it is to mod one and how much I’d be looking at? I live in the US and it is a PAL machine. My games are US however and I want to make backups of all of the games so I have a set in each room to use.

I’ll search the forum for the backup method (mini-DVD-Rs OK to use?) but I need some guidance on modding it…

Thanks anyone that can help.

Which console are you talking about? Gamecube maybe as you mentioned mini dvdrs.