![foone on Twitter: "So a really neat feature of the Famicom Disk System was the copy protection, which was physical. See how some letters of NINTENDO are inset? There's matching tabs in foone on Twitter: "So a really neat feature of the Famicom Disk System was the copy protection, which was physical. See how some letters of NINTENDO are inset? There's matching tabs in](https://pbs.twimg.com/media/DgAlf7xUwAEoVkY.jpg)
foone on Twitter: "So a really neat feature of the Famicom Disk System was the copy protection, which was physical. See how some letters of NINTENDO are inset? There's matching tabs in
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Super Nintendo Famicom SNES SFC Japan Console with Super Disk Interceptor Bundle, Video Gaming, Video Game Consoles, Others on Carousell
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