Ricoh is not a large manufacturer of DVD+R media. Even though the media you buy sometimes have Ricoh ID, that does not necessarily mean they are manufactured by Ricoh. Ritek makes most or all of them. It may sound strange but Ritek sells their own RiData media with Ritek’s own IDs while shipping the OEM media with Ricoh’s ricohjpnr01 and ricohjpnr02 IDs. It’s misleading and even deceptive because it’s not Ricoh and not made in Japan.
Ritek does it to sell more media at higher prices which has helped Ritek stock prices at Taiwan skyrocket recently. The succes story is known widely in the industry.
It doesn’t have to be Taiyo Yuden if you can get ricohjpnr01/02 media at under half the cost of t01/t02 (respectively.) Meanwhile, it might be just that the market in Europe is rather slowly responding due to some inefficiencies. If you can, visit Lite-On IT’s headquarter in Taiwan. You’ll find out they are now importing Taiyo Yuden DVD recordable media instead of Ritek or CMC Magnetics media to bundle in their products. Because Lite-On thinks just like I do. However, the 4x DVD-R bundled media are still Ritek G04, unfortunately. I’d like one more T02 instead of that.