I was thinking about cool dvd cases and thought about one that I saw somewhere once, but I can't remember what it's called. If I recall correctly, the case was clear plastic that was squishy and had "blood" or slime inside that would move and drip around when you handled the cover. Does this sound familiar to anyone ?

I believe you're thinking of the blood bag for Ichi the Killer.

The original printing of The Director's cut of SAW had blood in it too.

clear hard plastic case = prolly saw
plastic bag that surrounds dvd disk = prolly ichi
slipcover with plastic overly = prolly hills have eyes bestbuy exclusive

are there any others in r1?

Ichi the Killer or Saw or Hills Have Eyes