Giz Explains: Every Video Format You Need to Know

Once upon time, video codecs and formats were really only the concern of AV nerds, anime freaks and hardcore not-so-legal movie downloaders. Now, even the most part-time of geeks has to deal with them, whether they're trying to stream a flick across their house with an Apple TV, dump some video onto their phone or… » 11/20/08 2:15pm 11/20/08 2:15pm