According to the Chinese newspaper EDN (Economic Daily New), Lite-on will be the second company that will produce HD-DVD addons for the Xbox 360. Currently Toshiba is already producing the very same piece of hardware.
It seems that Microsoft wants to assure it will have enough addons ready for 2007 or just doesn't want to bet on a single party. Or are they maybe planning a new Xbox 360 model with HD-DVD player build-in? It might just shine another light on this newsarticle.