Pattern #1:  removes Disk Verification Error #2
Pattern #2:  ???
Pattern #3:  removes Disk Verification Error #1
Pattern #4:  removes Disk Verification Error #3
Pattern #5:  removes Disk Verification Error #4 (except Forsaken)
Pattern #6:  removes Disk Verification Error #4 (only Forsaken)

For a perfect copy you only need the Pattern #1, but for
copies made with WinOnCD or EZ-CD-Creator you need also
the Pattern #4.