I also just thought of this, though like the other guys say it shouldn't be a problem. But if you wanted to test it, take a game you own, uninstall it, disconnect Internet and pop it in. That way you know 100% it'll work, good luck man :)
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I actually hadn't considered putting it to the test like that. Cheers!
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Yep no problem haha, have the occasional good idea xD good luck!