This is probably a really nooby question but, as the title says, can I do this? Basically I did all the stuff to patch Neo Y, and it works perfectly on my 3ds, but now after playing it for a while I've started to wonder if I can change the music. So instead of having to dump Pokemon Y again, is it possible for me to just extract the Neo Y romfs (thats already in my SD card) again with RomFS extractor? I take it I'll have to change it to .bin as trying to extract the .romfs file in the extractor just says "File is invalid binary file" or something. Thanks!