Can you play backup copies of PSX games without Game Enhancer or MOD Chips
 

Is there anyway possible to make backup copies of PSX Games without having to own a Game Enhancer or MOD Chip just using a boot loader CD maybe.

Nope

hi,
Yes you can play psx back up's with out a mod chip or Game shark.
You can do the switch and swap trick. A few of my friends do it that way.
just serch for psx switch and swap and you should find it have fun bye.

You will have to own a really old psx to do that. The newer models won't swap at all, or at least I don't think they will. If you have one of thoes really really old psx, some of them act as if they already have a mod chip inside and will play back ups with out a mod or cartridge.

Go ahead and do the swap trick and wreck your psx motor.