In most case, high fail rates are due to the readability of your master disc, especially for high-speed duplication. We strongly recommend re-creating your master at a low speed, such as (4x for CD Duplicators and 1x for DVD Duplicators) and using high quality blank media. Then, you can use the recreated disc to be the new master disc which should be used as the source to create duplications. This process is called Master Recreation and it will reduce the fail rate significantly.