Verbatim has also announced that they will be shipping the world's first HD DVD-R media. According to their press release, their 15GB DVD-R discs will hit the Japanese market in early July.
Verbatim Corporation and its parent company, Mitsubishi Kagaku Media (Verbatim/MKM) announced today that retailers in Japan will receive shipments of the industry's first 15GB HD DVD-R media early in July. Production of 30GB dual layer HD DVD-R media will begin in June. Shipments to other parts of the world will begin when hardware products supporting these recordable formats become available. Verbatim/MKM is also expected to be first to market with HD DVD-RW rewriteable media, as soon as the official specification is released.

The HD DVD-R media is produced at MKM's technically advanced Singapore factory. Widely recognized as the leading facility for producing new CD/DVD technologies, the Singapore factory also developed and now manufactures the world's premier dual layer DVD media.
If you'd like to read more, the entire press release can be found here.