Blu ray disc player and technology: the cinema at home

At first sight, one could think that all Blu-Ray discs are the same. However, it is not this way, and neither are the players. The original technology of this movie format has been evolving since its inception and now there are three very different Blu-Ray “versions” or profiles out there. This fact is important because each version adds functions that were not present in the previous one. If we choose an old version when buying our Blu-Ray player, then we will have a limited player and won’t be able to play some movies or enjoy some features that enrich the experience.