The VG Resource

Every time I extracted a decrypted 3ds rom file, this is what I get. I would like to extract this, so that I may get voice clips for these characters, and can upload them to Sounds Resource. But, I don't know how to get the audio files out. What do I do? And before you ask, yes I tried ctrtool. But it doesn't extract the decrypted roms regardless of whatever I may do. So, any help is would be appreciated. For now, I'll give you the romfs.bin for London 2012(M&S).

{LINK REMOVED -- DO NOT LINK TO ROM FILES!}