Super Audio CD
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Video Single Disc
DL (Double Layer), also known as
DVD+R9, is a derivative of the DVD+R format created by
the DVD+RW Alliance. Its use was first demonstrated in October 2003. DVD+R
DL discs employ two recordable dye layers, each capable of storing nearly
the 4.7 GB capacity of a single-layer disc, almost doubling the total disc
capacity to 8.55 GB. Discs can be read in many DVD devices (older units
are less compatible) and can only be created using DVD+RW DL and Super
Multi drives. DL drives started appearing on the market during mid 2004,
at prices comparable to those of existing single-layer drives. However,
the price of DL media ($1 to $5 USD per disc) is many times that of
single-layer media. The latest DL drives write double layer discs slower
(2.4x to 8x) than current single-layer media (8x-16x).
A double layer rewritable version called DVD+RW DL has been released but
is expected to be incompatible with existing DVD devices.
Wikipedia information about
DVD+R DL. This article is licensed under the GNU Free Documentation License . It uses material
from the Wikipedia article 'DVD+R DL'
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