Haynes.tv

Which will it be, Blu Ray or HD DVD? Blu Ray is coming out here soon in the next month I believe and will run around $1,000 for a player. For those of you who do not know Blu Ray and HD DVD are the next generation of DVDs they will hold much more on a disc. Blu Ray promises to hold 25 GB on a disc and 50 GB for a two sided disc, as where HD DVD is suppose to hold about 15 GBs a side, so only 30 GB on the two sided. The current DVDs can only hold about 4.7 GBs on a side. So that is obviously a substantial improvement. How they do this you ask? They use a blue laser instead of the standard red laser. See if you remeber since class there are all these colors in the rainbow which and if you remeber what a rainbow looks like blue or violet, to be more specific, is on the bottom as where red is on the top. This can be seen in the picture below.

Unfortunately the bend of the rainbow can not be seen in that picture, but as any one who has seen a rainbow know the blue is shorter and on the inside of the bow. Consequently the laser on these new DVDs players will have a short wave length and therefore be narrower and able to read more lines of information on the DVDs. Eventually they want to increase the layer on the DVDs, which will allow virtually unlimited storage they are working on a 100GB one for next year and who knows maybe a 1TB one in the next several years. Anyhow the only problem is there are these two different designs the Blu Ray by Sony, which will also be used in the new PS3s coming out in November. Then there is the HD DVD which I believe is by Toshiba. I imagine there will be more brands using these technologies as time goes on I know companies like Dell will have the Blu in their computers this summer, but I do not recall what other companies are planning to use which. Anyhow this will be interesting to see which one wins, right now my money is on the Blu Ray, but that might change. Because it looks like the HD DVD is going for cheaper. In fact half the price on Amazon $500 where you can preorder either one now.