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Using superb manufacturing processes and only the best dyes to produce Verbatim Azo 16x Branded Matt Silver DVD-R in Packs of 25, Verbatim have established themselves as one of the world leaders in the production of blank media.
As with any Verbatim product, the quality of the disc is second to none, meaning the highest burn speeds and the best compatibility ratings around. A top-class disc from one of the world`s best media manufacturers. Advanced AZO technology provides added resistance to UV light for increased protection and reliability, producing high quality picture and sound with more than 100 years archival life.
Verbatim Azo 16x Branded Matt Silver DVD-R in Packs of 25 media are write-once, single-sided discs. A DVD-R typically has a storage capacity of 4.71 GB (or 4.38 GiB). The larger storage capacity of a DVD-R compared to a CD-R is achieved through smaller pit size and smaller track pitch of the groove spiral which guides the laser beam. Consequently, more pits can be written on the same physical sized disc. In order to write smaller pits onto the recording dye layer a red laser beam with a wavelength of 640 nm (for general use recordable DVD, versus a wavelength of 780 nm for CD-R) is used in conjunction with a higher numerical aperture lens. Because of this shorter wavelength, DVD-R use different dyes from CD-R to properly absorb this wavelength.
Verbatim Azo 16x Branded Matt Silver DVD-R in Packs of 25 media are composed of two 0.6 mm polycarbonate discs, bonded with an adhesive to each other. One contains the laser guiding groove and is coated with the recording dye and a silver alloy or gold reflector. The other one (for single-sided discs) is an ungrooved "dummy" disc to assure mechanical stability of the sandwich structure, and compatibility with the compact disc standard geometry which requires a total disc thickness of about 1.2 mm. The sandwich structure also helps protect the data containing layer from scratches by a thick "dummy" disk, a problem with CDs, which lacked that structure.
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