Verbatim's parent company, Mitsubishi Chemical, has announced that they be releasing their new HD DVD-R media for PC data on the Japanese market on January 25th. Here's part of their press release, translated from Japanese:

This corporation in 2006 July sold the HD DVD-R disk for video video recording for the first time in the world, hi-vision image such as terrestrial digital broadcast while it was hi-vision picture quality actualized the fact that it leaves to the disk. This time it continues to this, adjusts to the sale of the corresponding equipment and sells the HD DVD-R disk for the PC data. As for this product, we answer the various demands of the customer even in the world of PC where in the future increase of the data quantity is expected more and more the capacity of single sided 1 layer 15GB with, high picture quality including handling the image contents, as the bulk media whose reliability is high.
Mitsubishi has not announced a price. However, according to AV Watch, it is expected to cost about 1500 Yen. If you'd like to read more, the entire press release can be found here.