Blu-ray

  • The Blu-ray is an optical disc the same dimensions as the DVD – HD DVD, but with much more recording capacity (Blu-ray 25gb – Blu-ray 50gb)
  • Disc Diameter   = 120 mm
  • Disc Thickness  = 1,2 mm
  • Disc Structure   = 2 bounded 1,1 mm – 0,1 mm substrates
  • Laser Wavelength  = 405 nm
  • Track pitch    = 0.32 nm
  • Layer of data = 1 to 2