Absolutely bad blanks. Apparently the production was changed or Intenso has a new supplier. Since they are marked with "IHQ 'button, they are no longer as plastic scrap, previously they were without any problems! Not one of 10 could be burning with a 6.2 GB file. After switching to the Verbatim file was burned in the first attempt. The support of Intenso is also absolutely deficient. No response to multiple messages now. Apparently they are glad of any selling packaging from these useless plastic discs. My tip: rather spend a few extra cents for quality and stay away from Intenso! Unfortunately, you can not give less like a star, but the neither the blanks nor the manufacturer deserves.