Graboid Video doesn't pay to access copyright protected material, therefore movies downloaded from them don't meet our standards here at cdfreaks. We do not discuss copyright protected videos that are downloaded without permission of the copyright holders here on these forums.
Since you don't mention a specific movie, you manage to just sneak in under the wire....so I won't close this thread. You should make yourself familiar with the rules before posting in the future.
Geno has given you a good answer by the way. You might want to slow down your burning speed to 8x with 16x media too.