At one point we sliced images to make it relatively useless 
to a person looking to copy all the images, but since that 
time, out catalog has grown to about 1,000 images at an 
average of 200k. Slicing has not worked that well for us in 
this case. Slicing will make someone potentially come back 
a second time to get your html files as well so it is a bad 
move.

Personal notes for others:
- .htaccess was only cutting down on hotlinking, and plays 
a big role for the video collection of commercials and 
other assets. unfortunately we have to limit the number of 
connections per user, and the bandwidth per thread as 
opposed to the whole server. Isapi rewrite is a tool for 
iis users, but has a bad memory leak.

- Form post to protect an area will help deter a percentage 
of people, not all.

- Javascript can be stunted with proximatron or something 
that re-wreites the code on the fly, but the number of 
people using the combo is pretty small.

- encoded links can have the same problem

- flash is useless, loading movies in movies that load 
images is pointless.

A combination of a few of these should help.