Problem loading new Blu-ray movies

[QuiqueJ]

I have a Sony BCP S-301 player. This week I tried to play the movies Batman
begins and Nyms island, but the player keep on trying to load the movies unsucessfully. I tried older movies and they loaded perfectly. I went to Sears and a salesman employee told me that I need to download an update for the player. The problem is, assuming that is correct, where can I find the file needed and what is the procedurefor installing it in the player? Have anyone else enconter this problem, any help will be mostly aprecciated, thanks, Jose E.