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Condition & GradingHow to Grade GameCube Discs, Cases and Console BundlesTilt a GameCube mini-disc under a desk lamp and turn it slowly. Honest wear looks random — a stray arc here, a fingerprint there. But if the whole surface carries one uniform, circular swirl from hub to edge, like it went for a ride on a buffing wheel, you're looking at a resurfaced disc. That's not automatically a dealbreaker. It is something the seller should have mentioned. Small disc, small margin for error The GameCube's proprietary 8 cm disc is based on miniDVD technology, and its size
Condition & GradingHow to Grade a PS1 Disc Before You Buy or SellHold the disc under a lamp and tilt it. If the underside glows that deep, smoky black, you're holding the real thing — Sony pressed original PlayStation discs with black-tinted polycarbonate on the read side, and nearly thirty years on it's still the fastest authentication check in retro collecting. If it's silver, put it down. Everything else about grading a PS1 copy comes down to two honest questions: will it still play, and is it actually complete? Sellers blur both all the time. Here's how