game burning problem

[blitzchampion]

Hi, I have a a PS2 with a mod-chip, and an LG dvd-RW drive. A friend borrowed me a copy of JAK 2 ( on DVD ) and as I was trying to direct copy it with NERO 6 ( like I had done before ) it blockedz, with some kind of error. After that I tried to copy the contents of the DVD to the desktop to burn it to a DVD after, it said it couldn't copy a certain file and stopped after that. I'm a begginer on this things, so I'd like to get some help. Thanks in advance.