Just when you finished replacing all your VHS tapes with DVDs, you
heard that there are two new kids on the block, HD DVD and Blu-ray.
They both claim that they're the successor to DVD, and that eventually
they're going to replace it completely. If you've been watching this
fight from the sidelines, confused by the differences between the
competing standards, keep reading, and we'll explain some of the
technical details behind the marketing hype..