NBA Shootout 2003 patch.. ? not sure, please help

[generasianxxx]

i was trying to backup my copy of nba shootout 2003 for psone and when i tried to play the copied disc, everything worked out fine for the intros but when it attempted to go the main screen, the screen with the red circle and the "system has been modified" showed up. i'm kinda new to this patching stuff.. so if anybody can help me out with this, please post. much appreciated.. thanks