HELP!

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I've been trying to make a copy of tony hawk 2. I have the game burnt from my friend, and it works fine. I used discjuggler to save it as a .cdi file, and select all the necessary options (Mode1, etc.) and i burn it, and it reads 72:21 under music with 2 tracks, the same as the original my friend burnt me. I've burnt NBA 2K1 recently and that worked perfectly fine. Whats wrong, and i how could i get thps2 to work?