Don't buy these.I tested these discs on FOUR different computers. No luck.I even had my Macbook Pro DVD-RW drive replaced at the Apple Store only to find out that a new out-of-the-box drive doesn't burn these either.I left the discs spindle at work and nobody could burn anything either.Unfortunately I couldn't figure out whether the ones I bought were from India as other reviewers said.I burned around twenty from different parts of the spindle, so this is not the regular the-first-five-discs-are-bad problem.Stay away from these.