SuGao 4 SixTONES Edition DVD. Domestic genuine product. [Authenticity] The "45 + alphanumeric characters" that are only engraved on genuine products are engraved on the back of the disc. Please check photo 4. [Condition] I have only played it a few times, and after that, I have kept it carefully. Please understand that there may be some minor scratches from home storage or from the beginning. Please refrain from purchasing if you are nervous. Operation confirmed. * Instant purchase OK.