Re: I have the same issue too in Aust.
While reading through your post, I saw this is a Australian model. As I don't have any information on anything other than US models, please contact support here: http://www.samsung.com/au/support/model/HT-C5950W/XSA
As I've been asking for the following info, it would be advisable for you to provide it to the Samsung Australia support team:
Movie Title: Avengers (3D, Blu-ray)
Retailer where the disc was purchased: ???
Complete Model Code of Blu-ray Player/Home Theater: ???
Firmware Version: ???
Describe the behavior when a disc is inserted (e.g., error messages, appearance, time delay): ???
How many copies have been tried: ???
Hope all works out!