That logo has existed for well over a year:
Steering Committee Letter Voting
(click on the link for point #3)
Since "-R DL" media is not reliable (unlike +R DL), I can't imagine this succeeding. It's the same problem Toshiba had with recordable HD-DVD media. Without industry support (very few, if any, media manufacturers produce "-DL" discs anymore) this will go nowhere. It's a shame Toshiba was so stubborn about +R. Oh well.
Dear Toshiba,
Let it die.
Signed,
The universe.