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[Gattsu25]

for Blu-Ray Disc, I was able to find this:

[u]Main Specifications[/u]
     Recording capacity:                   23.3GB/25GB/27GB
     Laser wavelength:                     405nm (blue-violet laser)
     Lens numerical aperture (NA):         0.85
     Data transfer rate:                   36Mbps
     Disc diameter:                        120mm
     Disc thickness:                       1.2mm (optical transmittance
                                                   protection layer: 0.1mm)
     Recording format:                     Phase change recording
     Tracking format:                      Groove recording
     Tracking pitch:                       0.32um
     Shortest pit length:                  0.160/0.149/0.138um
     Recording phase density:              16.8/18.0/19.5Gbit/inch2
     Video recording format:               MPEG2 video
     Audio recording format:               AC3, MPEG1, Layer2, etc.
     Video and audio multiplexing format:  MPEG2 transport stream
     Cartridge dimension:                  Approximately 129 x 131 x 7mm

http://panasonic.co.jp/corp/news/official.data/data.dir/en020219-4/en020219-4.html


but for the life of me I can't find the HD-DVD specification anywhere...can anyone help me by providing a link?

 

[Tekky]

It might help to know that HD-DVD used to be called "advanced optical disk".

Some info here: http://www.dvddemystified.com/dvdfaq.html#3.13

The rest you can find through Google.

Same numerical aperture as DVD.

 

[Gattsu25]

I must suck at google or something, thanks!