Well in the past two or three years, Paramount stopped pressing the original DVD releases of TNG, DS9, VOY and ENT, and brought out new cheaper, slimline boxsets with funky new art. All of the special features and menu graphics were the same as what was released with the original packaging, but the price was a good two-thirds lower than the original cost. The same is probably happening with TOS, especially with Trek XI coming out.
Is that region 1? I've been wanting to start picking up TNG and DS9 but I don't like the current box designs. I'd love to see this in normal packaging.