want to back up one of my PS1 games

This may be the wrong place to post this, but...

I just bought a used copy of Legend of Mana and would very much like to back it up. It just plain cost me too much and I don't want to lose it, again.

While I could use a friend's PC to do it, I would much rather use my Mac (iMac G5 with OS X 10.4.7) if at all possible. And no, I can't run Boot Camp. Any and all help is greatly appreciated.

Also, I will be playing this on a PS2. I know I won't have a problem with the original disc, but would the backup work on there or only on PS1? I have a Slide Card and Swap Magic discs (v2.0 CD and DVD versions).