Best Double Layer blanks !!!

Recently was in the computer image, a test of various DVD blanks where Verbatim DVD-R DL (8.5GB) have cleared the first place. Basically, I do not think much of this magazine, but in this test I had to agree with the editors of exception. Verbatim is the only blank, with whom I previously had no problems. The low Platinum and Memorex were only partially readable after burning. The first layer was not a problem, but the second layer is no longer legible. This is possibly the Brennerkompatiblität or bad media. The latter will probably be decisive for.
The media I burn Always use 2 times the normal speed, because I want to back up important data on it. This ensures better readability. They can also be 4-fold to burn, but moving out of specification. Usually one thus causing burning errors! My burners from Pioneer and LG. Both ran flawlessly with these discs.