As I said, you CANNOT protect yourself from digital fingerprint, unless you can encrypt the content itself. md5, changing filename, rarring, rerarring and whatnot, cannot help against DF. People who suggest that, have no idea what they are talking about, and what technology is used in fingerprinting, or how it is done in the first place.

I just got an idea, how you COULD protect yourself...

Reencoding, and reversing left-right side of the image could do the trick. I saw people doing that on Youtube, which is also protected with DF