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: Don't Touch That Dial Plextor's new ConvertX PVR turns a Mac or PC into a digital video recorder. It's a slick product that's easy to set up and use. But inexplicably, the PVR is crippled in a fundamental way. By Leander Kahney.

Sci/Tech