Flash disks with DMA enabled are not usable with NIU/NIU2 and you need to disable it to use your flash.
However there is a way of disabling it which if you send it to the manufacturer,they will do it for you.We learnd it the jard way.
Because I thought someone in the forum must have come accross this before and might have a solution to share with others,I decided to raise the question in the forum.
regards