Product ID: PHILIPS-01049
Warranty: Condition: Brand New
Description
- Philips 16x Branded DVD-R 4.7GB in Packs of 50.
- Rely on the reliability and compatibility that customers have come to expect from the Philips brand.
More Information
The Philips 16x Branded DVD-R 4.7GB in Packs of 50 are professionally designed with a frosted silver top surface, Philips logo at the top of the disc and disc information displayed within the shiny silver strip at the bottom of the disc.
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.
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