There are plenty of places on the web and Usenet you can visit that do a far, far better job of explaining the technical aspects of DVDs [they'll use terms like "widescreen", "anamorphic", "16:9", and the like. It Involves Math.] My focus, in this section, is strictly on discussing the "creative" features that one gets in DVDs but not in theaters; in other words, the "behind the scenes" whoosits and whachamacallits.