Knockout Kings 2000 Help needed please

[disposable_teens]

Sounds weird since you said it worked for 3 days. But try burning it again using the following CDRWIN settings.
Before you begin copying, disable all the programs in the system tray icon (especially anti-virus), defragging the drive might be usefull also.
Under the CDRWIN extract disk/sectors option make sure you have RAW and MCN/ISRC checked. Also error recovery should be on ignore, jitter correction on auto and subcode analysis on auto. For the read retry recount type in 50. It will also be better if you set all your speeds to 2X since playstation reads at the same speed. Try that and see if it works.
I use the same Sony CD and they worked pretty well especially with EA games. I tried copying Syphon Filter and it turned out bad also.