I joined Lovefilm 22/1/07, exactly 2 weeks ago. I've had 8 discs since then. 5 of these discs were HD-DVD discs. They have all played with no problems. I've just checked online and the 9th disc has been posted today so should be with me tomorrow.
I'm very happy so far.
Ofcourse all this could be because I am a new customer?