Of the 5 DVD + RW, there are two who died and one that is dysfunctional. The first is not formatable: when I insert it, it is impossible to add files above because the computer to format the application but when I click the format button, it says "I can not work for this element ". The second is not recognized at all when I insert my computer tells me "empty drive, please insert a disk into the drive." The third working well at first but I for some reason, it has deleted all my data that was it. Otherwise, the remaining two DVDs work fine.
