I'm pretty sure there's only one version of the DVD.

It's the one with the 'disc on the cover', but that's not even the cover per se. The actual box is made of a transparent plastic. The disc you see is the proper disc that you take out, resting on a piece of black foam.

This is what it needs to look like, and incidentally that's where I bought my copy. Anything other is gonna be a bootleg copy.