I'm guessing that the OP has a problem with one game, but all others are working fine? If that is the case, there is no need to send the console be repaired. Did the console cause the scratch?
If the game loads up to the certain point, it may be possible to borrow a friends copy or a rental, install that to the hard drive and then use your game disc to launch it. Otherwise you're going to have to purchase the game again.
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