help , parasite eve 2

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I am trying to backup parasite eve 2 , I Know i need to patch it , but for some reason when I am reading the disk using CDRWIN the program hangs up when the copying gets to 83% . has anyone else had this problem , or is it a problem with my original disk . I have set the 'read ready count' to 50 on CDRWIN, but when the extraction gets to 83% and it errors 22 times my system locks up and I have to end task to stop it.