Yep, I just discovered this too. Not very happy about this for the price I paid. Amazon needs to notify purchasers on the multi-disk titles descriptions what the expiration dates are on the digital copies they sell. Then we will at least know before hand, and can make an informed decision to buy or not.
Great movie, but Sony SUCKS!! Sony digital copies are only good for 1 year from their release date. No, Sony does not care that you just bought the movie because there is an expiration date on the back of the package. I have had Digital copies from Paramount and Warner Brothers that were expired and they still let me download the digital copy. Sony just does not care about their customers.