The blue period of lasers
detail information
| Posted by | Robin van Lieshout |
| Posted on | 27/07/02 20:18 |
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Main Specifications| Recording capacity: | 27GB |
| Laser wavelength: | 405nm (blue-violet laser) |
| Lens numerical aperture (NA): | 0.85 |
| Data transfer rate: | 36Mb/s |
| Disc diameter: | 120mm (same as CD and DVD) |
| Disc thickness: | 1.2mm (protection layer: 0.1mm) |
| Recording format: | Phase change recording |
| Tracking format: | Groove recording |
| Video recording format: | MPEG2 video |
| Audio recording format: | AC3, MPEG1, Layer2, etc. |
| Video and audio multiplexing format: | MPEG2 transport stream |
Unfortunately not all specifications are for free. The complete technology is explained in a special 'Specification Disclosure" that is stored at the Intellectual Properties and Standards Devision of Philips. They will gladly hand over the complete disclosure to you for the sum of US $5000
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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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