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Preserve Your Games with the Open Source Cartridge Reader
(www.retronews.com)
Vintage gaming community.
Rules:
If you see these please report them.
Most of the cartridges this device can dump are so old that nobody will come after you for owning such dumps, whether they're from your cartridge or not. It'll also be hard to prove that the ROM isn't from your own cartridge if it's a clean ROM.