i am using OSX and things i download come on "dmg"s, which i've figured
are some kind of soft-partition disk images.
they mount when you double-click them. but some seem to be able to go on
and do other things, like "autorun" in Windows.
is this dangerous? can it be stopped by some switch i am overlooking?
also one dmg seemed to have a largish picture in its window. i thought
it might be a trick like from the old days, lots of folder icons patched
together to give the appearance of a large image, but nope, it seems ...