Affiliate Marketing Secrets

I found two versions of the film, but they appear to be different, even though it’s the same in appearance.
Back to the Future: 25th Anniversary Trilogy [Blu-ray + Digital Copy] (1985)
–> http://www.amazon.com/Back-to-the-Future-25th-Anniversary-Trilogy-Blu-ray/dp/B00198X0UO?SubscriptionId=AKIAIY4YSQJMFDJATNBA&tag=bluray-027-20&linkCode=xm2&camp=2025&creative=165953&creativeASIN=B00198X0UO&m=
Back to the Future: 25th Anniversary Trilogy [Blu-ray] (1985)
–> http://www.amazon.com/Back-Future-Anniversary-Trilogy-Blu-ray/dp/B0054OGQOQ/ref=tmm_blu_title_0
The only difference might be that one has DVD’s and digital copies. Please enlighten me if you can.