Super blanks I have to say. For the price and a super success rate can not complain. However, I must add that I was able to realize this high Erfolgsqouote only with TSST Corp burners (3 failed by 100 blanks). The burner from LiteOn and LG already sometimes have as their little problems, so that we arrive at (10-15 of 100) false fires. With a Panasonic burner I had similarly good results as with the Toshiba TSSTs. For long-term durability, I can say that I could easily fully read up to four years old Mediarange even contrary to the assertions of other users.