Only some camera manufactures use proprietary RAM format. There is OpenRAW, for instance. And even if he didn't use that, I don't think it would matter, except

Only some camera manufactures use proprietary RAM format. There is OpenRAW, for instance. And even if he didn't use that, I don't think it would matter, except to the image generated. Text -> mung -> image -> unmung -> text. You should be able to do any format, assuming the conversion opens and saves into the same format. Anyway, I gathered that the guy was precisely trying to show that lossy compression was a good thing when used in the right manner, and bad in the wrong manner. But frankly, I don't care if he was making a point or not. It was a funny read, and having books printed of his various outcomes was a thoroughly wasteful, yet funny idea. So I guess even though I didn't learn anything, I was at least entertained.