If the original doesn't work then a copy likely wont either. You might want to try cleaning it with some dish soap and warm water to see if that helps. If Madden 2003 is a dvd game then yes you can back it up to a dvd. If it is a cd then it needs to be backed up on a cd. If you have a v5 or higher ps2 then your +rw should work ok. Check
here to see what version you have. If it is lower than a v5 you should use -r.