What is the status of dual layer recording

I searched through all the forums on this topic but without success.

Can someone direct me to a definitive and recent article on this topic?
The article on this site is dated back in July of this year.
Can we reallly go out and buy dual layer media and burn a DVD today?


Dual layer recording on DVD+R DL (dual layer) is available now. All of the latest burners support and it many online retailers have DL media in stock (though at high cost.)

So yes, you can go out a buy DL media and burn it today, although it is not cost effective.

Dual layer recording on DVD-R DL is not yet available as the specifications are still under development.