Compared with single layer discs, however, double layer media have hitherto required considerable time to write their large volume of storage space. With the development of the first 16x DVD+R DL Ricoh has now radically increased writing speed while at the same time significantly reducing the writing time for the medium.
The "Inverted Stack Method" invented by Ricoh is already regarded by some to be the best possible technique for the attainment of high recording speeds in high-precision DVD+R DL media production. This Ricoh production method differs considerably from the "2P method" in which all layers are stacked on a single substrate. Separate production of both recording layers as practiced by Ricoh, initially takes place separately on both substrates. The two components are then pressed together. Thus in practice Ricoh’s Inverted Stack Method provides increased precision for both recording layers.
Source:
Press Release
Written by: James Delahunty @ 8 Mar 2007 17:27
