Paul Ward wrote:
Can anyone explain a way totest these disk so I can be sure they are
not corrupt.
At the risk of angering the gods, do you have access to a Windows
system?
There is a test program that I have used that seems to be an extensive
test program.
It comes from IBM/Hitachi and is called a "Drive Fitness test". They
request you run it before asking them for help with a disk problem or
before returning a disk because you think it is defective.
You can find it at: www.hgst.com/hdd/support/download.htm