I have already burned several hundred of these and the branded version. The first 2 blanks have been banished by Nero 9 (any detection problem in the middle of burning), since I take ImgBurn and have no failures. However, I do not use the speed of (max 4 mostly 2-fold and always read control -. Ok by 0.75 to 1.5 hours per disc), because the experience during firing of a few thousand of the most varied DVD has shown that the requirements , can quickly lead to loss of the entire system, if you do something in addition. The DVD I have tried about 20 varieties and only in the Verbatim I had after 4 to 5 years not a single complete reading !! Reading failure. Therefore, my decision for Verbatim. My Burner Pioneer BDR-206D.