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Semelhante a 58512 19348-bd
Semelhante a 58512 19348-bd (20)
58512 19348-bd
- 1. Dheeraj paul SEMINAR ON BLU RAY DISC
- 11. Principal BD Specifications MPEG-2 video Visual data Groove recording Data track Phase change Recording method 15mm Diameter of the center hole 1.2mm Thickness of the disc 36Mbps Data transfer rate 0.85 Numerical Aperture of the objective lens 405nm Wave length of the laser 23.3 25 27GB (single layer) Capacity
- 12. Comparison of CD,DVD and B D specification Parameter CD DVD BD . Disk diameter 120 mm 120 mm 120 mm Disk thickness 1.2 mm 1.2 mm 1.2 mm Laser wavelength 780 nm 650 nm 405 nm Numerical aperture 0.45 0.60 0.85 Minimum pit length 0.83 um 0.4 um 0.138 um Data rate 1.2 Mb/sec 11 Mb/sec 36 Mb/sec Number of sides one ----- one or two Number of data layers One ----- One or two Data capacity ~680 MB 4.7 GB (1L) 27 GB 8.5 GB (2L) 1 7 GB (2L/2S)