Backup PS2 game plays in black & white
 

So I recently made a legal backup copy of one of my Playstation 2 games. It burned fine, but when I played it, the game plays in black and white!

Is there something I can do to change this?

I used DVD Decrypter to rip and burn the DVD, by the way. And I have an older PS2 model SPCH-30001. I have the system outfitted with a slide-card/swap magic combo, and I've never had this problem in the past with other copies that I've made.