I was at Walmart today, and ran across single disc versions of Speed ($7.50), Die Hard ($9.95), and Die Hard 2 ($9.95), all anamorphic with DTS sound. I have been looking to replace my non-anamorphic copies for some time, and grabbed them. After watching Speed, I got to wondering: Is this simply the first disc of the recent 5-star version? I had not heard of a remaster, and cannot imagine why they would invest the money since the 5-star version had a great transfer to begin with (based on the reviews I have read). I have not watched either Die Hard, but the same query goes there as well. I did notice that, while Die Hard (and it's 5-star counterpart) are both THX certified, only the 2-disc version of Die Hard 2 is (the single disc release I got is not, or at least it doesn't say if it is). Are these pressed from the same masters as the double disc versions? Thanx for any insight!