Hardware Reference
In-Depth Information
Figure 11.14. DVD-R wobbled groove recording.
Table 11.14 has the basic specifications for DVD-R drives.
Table 11.14. DVD-R Specifications
DVD-R media is currently available in speeds up to 16x, although some drives feature faster burn
speeds. Some vendors are now producing double-sided single-layer DVD-R media with capacities of
9.4GB. This media is designed primarily for DVD jukeboxes, although it can be used by standard
DVD rewritable drives.
DVD-R DL
DVD-R DL was introduced in February 2005 and is sometimes known as DVD-R for Dual Layer or
DVD-R9. DVD-R DL is essentially a dual-layer version of the DVD-R disc, using the same recording
method, laser wavelength, and other specifications. However, DVD-R DL discs have two recording
layers, with the reflective surface of the top layer being semi-transparent to permit recording on the
second layer. Because of the lower reflectivity of the top layer, some DVD-ROM drives cannot read
DVD-R DL media.
Note
 
 
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