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Pioneer Develops DVD-R Dual-layer Recording TechnologyRealizing a recording capacity of up to 8.5 GBytes on one sideOctober 3, 2003, Tokyo, Japan - Pioneer Corporation has announced today that the company developed the DVD-R dual-layer recording technology. It means that the technological foundation has almost been established to commercialize DVD-R discs, where data up to 8.5GBytes can be recorded on one side.
In the rapidly growing DVD recorder market, there has been a strong need from users for longer hours, yet high picture quality DVD disc recording. Pioneer's new technology will allow the users to record programs of up to about 4 hours in the SP mode, or programs of up to about 12 hours in the EP mode with DVD recorders. The company intends to make a proposal of this technology as a new disc format to the DVD Forum after further improvement in performance. |
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The
new dual-layer recording technology, adopting the dye-recording-film layer
method, has realized a 9.34% jitter with a 17.3% reflection rate on the first
layer (L0) of a disc, and an 8.08% jitter with a 19.5% reflection rate for the
second layer (L1). This shows almost the same performance as that for dual-layer
DVD-ROM discs. It means that DVD-R discs supporting this technology can be
played back on most existing DVD players, and DVD recorders supporting this
technology will be developed easily.