Jon, what should be the correct mime-type for JPG files? I am
guessing image/jpeg but most of them seem to be set as
application/octet-stream.
I'm new here, and you weren't addressing me, but this is one I can
answer. image/jpeg is the correct mime type for jpeg images.
application/octet-stream is often used as a catch-all, where the
correct mime type is not known.
http://www.w3schools.com/media/media_mimeref.asp
That said, jpeg is probaly a lousy format for Lone Wolf images. jpeg is
designed for real life photographs, where the same color is rarely used
for more than one pixel. png is better for less realistic images, such
as illustrations. But then again, I'm new here, and don't really know
what jpegs you were referring to.