In a press release found on the Pioneer site, the company claims to be the number one manufacturer of DVD drives. The company which is also a founding member of the DVD-Forum (developers of DVD-RW) is trying hard to prove that in the current DVD recordable format war it is on the winning side. The company has shipped over 5 million DVD recorders at the beginning of September, the company's first DVD recorder was shipped around 1999.
The latest model of Pioneer, the A)6 writes both recordable formats (+ and -) and is a big seller. More information can be found on the Pioneer website, note that numbers provided are mentioned at the bottom of the page. Discuss DVD recorder in our DVD Recording Hardware Forum.
Source: Pioneer