Problems with playing a copy I made...

I played Daytona USA last night, and it worked fine. But this morning I tried and it didn't work at all. It would never read right and I always got the 4 icon (play, music, memory card, settings) screens loaded. I used a PNY 700mb disc, and the file is 659mb, any ideas on what to do? I also tried burning the Bootdisc (UTP 1.1) and it won't work either. Is it my CD-R's? I used DiscJuggler formats for both discs.