Playing Back Copied Games

[Xenoran]

Hey everyone,

I'm relatively new here and I'd like to know the best and easiest method for playing back copied games on my PSX. I was considering mod carts... but I noticed almost all of them require a CD-swap. My second idea was a mod chip... but I can't solder myself and the installations seem quite pricey. Could anyone clarify how mod carts actually work (and if all require a CD-Swap) and possibly provide me with a link to a good one? Also, I'd appricate any info anyone can provide on a cheap and legitimate modding service.

Thanks in advance!

(PS: My system is the 5501 with a paralell port)