Backing up a PSX game to play on PS2

[nodata]

Hey,

I'm having a bit of trouble backing up an older PSX game so that I can play it on my PS2. I'm fine with making the ISO and what not, but I'm just not sure what to do.

If it matters (not sure if it does), I'm trying to make a backup of Star Wars: Masters of Tera Kasi. It's an older PS1 fighting game, and I bought it used. It's not really scratched up that bad, but I don't want to make things worse by using the original.

Anyway, I'm wanting to play this on my PS2, and I have an UN-MODDED (not chipped) PS2. So, is it possible to make a working backup? If so, could someone PLEASE take the time to explain it. I've tried and tried, but to no avail, and I read around on the site, but wasn't sure if the info applied to having a mod chip or not, and if old PS1 games that were patched would work on my un-modded PS2...

Thanks in Advance!