category:独り言
事情によりHDDVDを応援したいのだが・・・果て？最終的にはどちらに軍配が上がるのだろう？？
ブルーレイ優勢と言っても日米どちらも光ディスクシェア１％程度の中で優勢でしょう？９９％はまだDVD。まだまだHDDVDの巻き返しの余地はある。
ブルーレイ・HDDVDどちらも対応する再生機・書き込み機をっていう会社あるけどぶっちゃけ無意味だと思うよ。しかも片方しか対応しないのと比べてちょっとお値段高いらしいじゃないっすか。そんなん買う人最先端テクノロジーマニアとか関係者とか限られた人たちだけだとおもうなぁ。
とある雑誌に「消費者が求めているものをもう一度見つめなおすことが必要だ」って書いてあったけど本当にそう思う。ブルーレイだのHDDVDだのぶっちゃけ毎日科学漬けの私だって分野が違うだけでよくわかんないもん。解説してあるやつ見ればある程度は理解できるけど・・・これが一般の人だったらもっと意味ぷーだろな。
プラズマテレビと液晶もそうじゃない。「～モデル」とか言って宣伝に成功してる液晶の方が優勢な気する。個人的にはプラズマの方が好きだけどね。社会人になったら買いたいものの一つだよ。
となるとHDDVDはちょっと不利かも。名前的に。呼びにくい。お金持ってる年配の方たち（団塊世代）は特になじめないだろうな。せめて簡単に操作できれば人気出るだろうけど。
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Blue-ray disc and HD DVD.. well, basically it's again the same old competition between Sony and Toshiba, but good thing is we are getting really advanced technology in optical discs.
"Blu-ray" is derived from the blue-violetssss laser used to read and write this type of disc. Because of its shorter wavelength (405 nm ), substantially more data can be stored on a Blu-ray Disc than on the DVD format, which uses a red, 650 nm laser.
A single layer Blu-ray Disc can store 25 gigabytes (GB), over five times the size of a single layer DVD at 4.7 GB. A dual layer Blu-ray Disc can store 50 GB, almost 6 times the size of a dual layer DVD at 8.5 GB, cool! ?
HD DVD also uses the same wavelength, But capacity varies, a single layer HD DVD can store 15 GB and a dual layer HD DVD can store 30 GB. Why? Both systems use the same kind of 405nm wavelength blue-violet laser, but their optics differ in two ways. Since the Blu-ray disc has a tighter track pitch (the single thread of data that spirals from the inside of the disc all the way out), it can hold more pits (those microscopic 0s and 1s) on the same size disc as HD DVD even with a laser of the same wavelength.
HD DVD use a 0.6 mm-thick surface layer, the same as DVD, while Blu-ray has a much smaller 0.1mm layer,The added benefit of keeping the data layer closer to the surface, however, is more room for extra layers. But herein lies the issues associated with the higher cost of Blu-ray discs. A special hard coating must also be applied to Blu-ray discs, so their surface is sufficiently resilient enough to protect the data a mere 0.1 mm beneath.
So, which one you should go for ;)? Well, there was a time when we were happy with tapes
"Blu-ray" is derived from the blue-violetssss laser used to read and write this type of disc. Because of its shorter wavelength (405 nm ), substantially more data can be stored on a Blu-ray Disc than on the DVD format, which uses a red, 650 nm laser.
A single layer Blu-ray Disc can store 25 gigabytes (GB), over five times the size of a single layer DVD at 4.7 GB. A dual layer Blu-ray Disc can store 50 GB, almost 6 times the size of a dual layer DVD at 8.5 GB, cool! ?
HD DVD also uses the same wavelength, But capacity varies, a single layer HD DVD can store 15 GB and a dual layer HD DVD can store 30 GB. Why? Both systems use the same kind of 405nm wavelength blue-violet laser, but their optics differ in two ways. Since the Blu-ray disc has a tighter track pitch (the single thread of data that spirals from the inside of the disc all the way out), it can hold more pits (those microscopic 0s and 1s) on the same size disc as HD DVD even with a laser of the same wavelength.
HD DVD use a 0.6 mm-thick surface layer, the same as DVD, while Blu-ray has a much smaller 0.1mm layer,The added benefit of keeping the data layer closer to the surface, however, is more room for extra layers. But herein lies the issues associated with the higher cost of Blu-ray discs. A special hard coating must also be applied to Blu-ray discs, so their surface is sufficiently resilient enough to protect the data a mere 0.1 mm beneath.
So, which one you should go for ;)? Well, there was a time when we were happy with tapes
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Hi☆ Sumon!!
So, you can now read my Japanese!! Wow, you really made a progress in a year.
Thanks for the information from the technical side. I enjoyed reading it.
Blue-ray... as consumers, hope we'll see the answer soon (haha).
BTW, sorry I'm late in returning mail. Lots to write but don't know when (>
So, you can now read my Japanese!! Wow, you really made a progress in a year.
Thanks for the information from the technical side. I enjoyed reading it.
Blue-ray... as consumers, hope we'll see the answer soon (haha).
BTW, sorry I'm late in returning mail. Lots to write but don't know when (>
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