The brand doesn't matter: it's the dye used to make the disc that's important, and the ones you have were made with just about the worst crap they could use.
Oh, didnt know that its the dye that makes the difference.
Still, I never had problems with Memorex so far.
Thanks, i just applied the newest Firmware but that Platinum disc i used last time was my last DL disc.
I'll try to grab some this weekend and report back.
But what seems like a total mystery to me is, that I had absolutely no problems with burning DL discs at all (some months ago).
Then, for a while, I didnt burn any DL discs at all.
Now, a few months later, i get a 3/3 fail rate on different (okay, maybe crappy #39;( ) media brands.