The 3DS ROM collection archive is a testament to the fact that while hardware may eventually fail, the stories and experiences within the games can live on indefinitely through the collective will of the gaming community.
The safest legal route is dumping your own cartridges. You will need: 3ds rom collection archive
The archive wasn't a collection.
Preservation wasn't just about copying files; it was about making them playable. Enthusiasts developed sophisticated tools to handle the console's encryption: The 3DS ROM collection archive is a testament