We have tested demo-CD and are impressed. We are ready to purchase DSS module. But yesterday, my USB flash drive quit working. This makes me nervous. If we are to spend $1,000 for this product, what protection we have against media failure? Also, what if the system got corrupted, say, during an update? Do you have some kind of image that we can reflash the module? Can we backup the module somewhere? If not, are we getting a new one in case of media failure? Thank you.