The blue period of lasers
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| Posted by | Robin van Lieshout |
| Posted on | 27/07/02 20:18 |
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The history of CD1st Generation
The Compact Disc (CD for short) is been here for over 20 years now. With the help of a 780 nanometer (red) laser the data on the single layer gets read. The first CD's were meant for audio, and later on the CD-ROM came into place giving us 650/700 megs of space per disc.2nd Generation
The development of DVD (Digital Versatile Disc) introduced an enormous upgrade of capacity, giving enough room (4,7 GigaBytes) for high quality sound and multimedia on a single disc. The throughput is much higher and a 650 nanometer laser is used. Now there are also 2 layers for even more capacity. This gives plenty of room to put an entire movie on a single DVD.
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Posted by nEXusJ on Wednesday 31 July 2002 03:33
Cool post, Mr. Belvedere. 
Great info on the BD. So, when's the expo on the 130GB CD3?
Later,
nEXusJ
Great info on the BD. So, when's the expo on the 130GB CD3?
Later,
nEXusJ
Posted by dansmug on Thursday 01 August 2002 22:30
I thought there were so little reactions, I felt compassion with Mr. Belvedere. So once again: nice article.
Ok. Great article... but... Why are they using MPEG2? We live in a world where MPEG4 has taken over(divx). All they need to do is creat a MPEG4 for super high resolutions(1080p).
Same with audio. By that time we will have DD10.2 or something like it. Audio should be encoded in WMA8(divx audio) or MP3PRO.
Same with audio. By that time we will have DD10.2 or something like it. Audio should be encoded in WMA8(divx audio) or MP3PRO.
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