WebOptics A conventional DVD uses a red laser which has a wavelength of 650 nm while Blu-ray Discs use much shorter wavelengths. Disc Metrics The larger the NA the smaller track-pitch and the smaller the pit length the more data can fit on a disc. So it's easy to understand why one disc type can store more than another. Storage Capacity WebAs is the case with CD-R and CD-RW, all DVD disc formats are governed by a variety of industry specifications or “books” defining their mechanical properties, optical signal characteristics, physical arrangement, writing methods and testing conditions. In addition, various documents also deal with file systems as well as applications.
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WebDurable & Soft - Made of Environmental PP Material and Non-Woven Material, it Protects CD, DVD From Dust, Damp Scratching and Data Corruption. Multi Pack Double Sided - Holds CDs DVDs and Liner Notes in Both Sides Easily. The size of each cover is 13 X 13 cm. WebOct 8, 2012 · Conventions of a DVD cover. Posted on October 8, 2012 by elireidas. 0. Conventions of a DVD cover: Film Title. Actors. Classification. Rating. Running Time. raytown sewer company
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