Double Layer DVD+RW format under development?

March 31, 2005

Because
of problems involving the low reflectivity of RW media it's been disputable
whether a rewritable double/dual layer DVD format would ever be developed. It
looks like the DVD+RW Alliance is working on a DL DVD+RW format though
because the technical committee of INCITS (t10.org) has published a draft (version 0.45) of
'Multi-Media Command set description for the Double Layer DVD+RW basic
format" here.

Double Layer DVD+RW is a
form of DVD rewritable medium. Physically, it is constructed for fully
random recording in the 32KB increments common to other DVD rewritable
formats. Zero loss linking during ECC block recording allows streamed
recording without skipping. A single logical format is defined for this
medium: the Double Layer DVD+RW Basic Format.

This
document includes descriptions and command support double layer discs in
both 80 mm and 120 mm.

It
will be interesting to see if/when burners supporting this format will be
released and if the discs will be playable in standard DVD
players.

Source: t10.org