Question About Mission Impossible Box Set

[JLaSoul]

I am about to order the box set, but wanted to know before I do if the specs of the indiviul movies are different from the ones that are in the box set, knowing that the movies came out sooner in the box set, and later indiviully. So I didn't know if when they were released later they improved the specs such as picture quality ect.. I saw on here the specs for the box set is that there all on 25 layer discs, but then looked up mission impossible one and it said it was on a 50 layer disc. Please help with this question anyone. Stay Blu Homies.