| Dual layer DVD burners are modern recordable drives | | | | disc). In other words, these burners write to the |
| featuring the ability to burn to dual layer DVD media. | | | | DVD discs on both the +R/+RW and -R/-RW |
| As the name indicates, a dual layer burner has twice | | | | formats. These burners allow you maximum |
| the burning capacity of a single layer burner. | | | | portability and compatibility, and provide the option to |
| Most of the DVD burners available in the market are | | | | choose any desired rewritable format. Internal and |
| single layer ones. The new comers, dual layer DVD | | | | external type dual layer DVD burners are available. |
| burners can solve almost all the problems related to | | | | A wide and low energy laser beam is used to burn |
| recording on DVD discs. A single layer DVD burner is | | | | the upper and lower layer of DVDs. Initially, the lower |
| restricted to burn only 4.37GB DVD discs, but a dual | | | | layer of the DVD disc is subjected to burning. Only |
| layer burner can burn a DVD disc of 8.5GB and the | | | | half the percentage of total laser power is used for |
| time extended up to 4 hours of video storage. The | | | | burning the lower layer. After this task, the burner |
| recording speed changes from 2.4X, 4X to 16X. One | | | | automatically directs the laser beam to the upper |
| can select dual DVD burners from some of the | | | | layer for the next round of burning. |
| popular brands such as ASUS, Sony, Pioneer, | | | | Although they are among the most useful hardware |
| Memorex, and Samsung. | | | | in the burning industry, dual layer DVD burners are still |
| Dual layer DVD burners, shortly DL burners, support | | | | very difficult to manufacture. This accounts for the |
| DVD±RW (or, -R/-RW and +R/+RW | | | | instability in pricing. Currently, this type of burner |
| operation - allowing rewriting on the both layers of a | | | | usually costs twice the price of single layer burners. |