Is it possible to rip sprites with tablet/ipad?

[Davy Jones]

Q: The SNES emulator gives me a “Bad ROM” or “Bad Checksum” error when the game loads.

This isn't anything to worry about. Games that have an English patch or hack patch applied will always give this 'error'. All that it's saying is the game is larger than it's supposed to be, which is what happens when a patch is applied.

Source: http://fantasyanime.com/faq

And if you're worried about viruses, go to emuparadise, they're ok.