CDR-Zone posted a review on the Verbatim 8x DVD-R Dual Layer media

Together with parent Mitsubishi Kagaku Media (MKM), Verbatim is the first manufacturer to produce a DVD-R disk with dual-layer technology with 8x read and write speeds. Key to the whole process is a special pigment for the recording layer, which promises high performance without diminishing the media’s reliability and compatibility. In addition, the development of sophisticated coating techniques and a special production method to form the grooves controlling the reading and writing process were required.

Verbatim 8x DVD-R Dual Layer Review