Blu-Ray discs are a new and improved technology that is capable of storing up to 50GB or so on a single disc, making them much better in the capacity sense than a conventional DVD or even a dual-layered disc. In THEORY, I would imagine that this would allow less compression and more raw video content, resulting in better quality, more features, and less restrictions on what can be included in a single disc.

Now... looking at Wikipedia...

It was a moderate amount of reading, but very interesting. Blu-Ray gets its name from the fact that the laser used to etch data onto the disk is blue (having a shorter wavelength than the red lasers they use for CDs and DVDs). I was correct about data capacity being up to 50GB, which equates to about 9 hours of high-definition video or 25 hours of normal video. It supports the usual codecs for movies and whatnot; however, this doesn't mean that it's limited to it.

Blu-Ray is currently in competition with HD DVD discs in a sort of storage media "war, " trying to oust the DVD format. Blu-Ray has one thing really going against it: the fact that mass production may NOT be cost-effective. (When will we be watching 9 hr HD movies?) HD DVD is cheaper, but falls short to the Blu-Ray with just 15-25GB of storage.

I would imagine that both storage formats would find a niche in today's advancement in technology. If I had my say, HD DVD should take over the standard for DVD movies and such, and Blu-Ray should take a hike for a little bit from the entertainment department, instead focusing on creating another storage means for PC users until we develop better codecs that allow even less quality to be compromised when writing to one of these discs.

Ehh....im not to crazy about them. The blue ray disks are the reason why the PS3 is about 600 dollars. Ya they hold a lot more and you can have better graphics on them but their very exspencive which is why the PS3 should of stuck with the same disks they were using.

As for holding music and videos i would say it does a great job but for games....no way. I did have a case of blue rays and i used them for music and i was able to hold over 70 songs on it, as for movies it may be a little hard to beleave but i was able to hold 2 movies on one disk.

Overall there are really nice for music and movies, as for games they wont be making a lot of money cause their to exspensive.