OK, a naive question from someone who is not an expert digital photographer. I am using a Hero 3+ Black with Protune on. I have WB set to RAW. Should I be expecting files in a format which is not JPEG ? The files are JPEG and even though it could be that they are JPEG with 0 compression applied, though it is hard to tell because the compression field in the file metadata is not filled in whether Protune is on or off. Also I have ISO-400 set, the file details say ISO-100. Does anyone used the RAW setting ? Explanations please. Thanks!