The DVD is an optical disc the same dimensions as the CD, but with much more capacity (DVD-5 = 4700 MB, DVD-9 = 8500 MB, DVD-10 = 9400MB)

• Disc Diameter   = 120 mm
• Disc Thickness  = 1,2 mm
• Disc Structure   = 2 bounded 0.6 mm substrates
• Laser Wavelength  = 650 nm
• Track pitch    = 0.74 nm
• Layer of data = 1 to 2