Thursday, July 05, 2007
Now it appears that Blu-ray is the favored format of the two. Blu-ray discs have been outselling HD-DVD discs by a margin of over two to one since the beginning of the year. This is surprising in many ways including the fact that Blu-ray players tend to cost about twice what HD-DVD players cost. On the other hand, the success of Blu-ray is unsurprising when you look at the fact that most of the major movie studios support Blu-ray exclusively for releasing movie titles. Because of this second aspect of the situation, there are just more Blu-ray titles to buy than there are HD-DVD titles.
There are also a number of technological reasons for Blu-ray's superiority. Basically, Blu-ray technology is able to pack a lot more data onto a single disc than HD-DVD technology can. It's possible to store twenty five gigabytes of data on one side of a Blu-ray disc, while an HD-DVD disc will only store fifteen gigabytes on one side. That adds up to as much as fifty gigabytes per Blu-ray disc versus only thirty gigabytes per HD-DVD disc. While most casual viewers of High Definition movies aren't likely to notice much of a difference, there are number of possible advantages that the Blu-ray technology has for computing. Basically, drives that can burn Blu-ray discs will be preferable for backing up or archiving large amounts of information and HD-DVD burning drives will be less attractive. Basically, there's a good chance that if Blu-ray had never hit the scene, we would eventually see HD-DVD replaced by something like Blu-ray at some point in the future. On the other hand, it may be possible to argue that Blu-ray is redundant because the next step after HD-DVD would have been some kind of storage medium other than optical discs.
For now though, it looks like Blu-ray will in all likelihood be the winner of the high def DVD format war.