http://www.viewpoints.com/Sony-dvd-r-reviews Mon, 04 Feb 2008 04:52:32 GMT Latest reviews about Sony DVD-R http://www.viewpoints.com/Sony-dvd-r-review-60c54 <p>I always had problems with their blank VHS videocassettes back in the 80s and 90s, so I wasn't expecting much when I bought Sony's brand of blank DVD-Rs.  To my surprise they turned out to be a very good brand, and I have bought several hundred over the last couple of years that I've owned a home DVD recorder.  </p><p>I like the fact that Sony makes their discs available in speeds 1x thru 16x because I still have a Panasonic DVD recorder that won't accept anything higher than 4x speed.  So Sony's come in real handy for this reason.</p><p> I definitely recommend this brand to anyone who's shopping around for blank DVD-Rs.</p>... Mon, 04 Feb 2008 04:52:32 GMT http://www.viewpoints.com/Sony-dvd-r-review-60c54 DietCokeMan500 5 http://www.viewpoints.com/Sony-dvd-r-review-24cb4 The larger storage capacity of a DVD-R compared to a CD-R is achieved through smaller <em>pit size</em> and smaller <em>track pitch</em> of the groove spiral which guides the laser beam. Consequently, more <em>pits</em> can be written on the same physical sized disc. In order to write smaller <em>pits</em> onto the recording dye layer a red laser beam with a wavelength of 650 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 and DVD+R use different dyes from CD-R to properly absorb this wavelength.... Wed, 19 Dec 2007 22:36:35 GMT http://www.viewpoints.com/Sony-dvd-r-review-24cb4 ltthao 4