I am very satisfied with this Blu-ray player. I already had a Sony before which I was very happy but unfortunately not 3D compatible. The S4100 reader does its job, nothing to say. It starts quickly, offers a beautiful picture and sound blameless (amplified on my home cinema). Having connected to the Internet I have additional functions, namely YouTube or access to VOD catalog / Sony Music Entertainment Network via I try occasionally to the movies I do not wish to buy Blu -ray ... In short, I have no complaints