Definition: In this task, you are given a news article. Your task is to classify the article to one out of the four topics 'World', 'Sports', 'Business', 'Sci/Tech' if the article's main topic is relevant to the world, sports, business, and science/technology, correspondingly. If you are not sure about the topic, choose the closest option. Note that URLs in the text have been replaced with [Link].
Input: Titanic battle over new DVD format It is being billed as the next VHS versus Betamax, the seminal TV technology culture clash that left millions of pieces of domestic equipment obsolete almost as soon as they had been built.

Sci/Tech