I have yet to find any DVD-R's that will burn at 2x in my 103 Superdrive. I bought some TDK 2x media, and for the first time ever, I was given the 'option' of burning at 2x. However, as soon as I clicked on 'burn', I was given a 'media error'. So I chose 1x and the TDK's burned fine. I know someone has found media that will actually burn at 2x !?!?!? Please share the brand name........