Hi Ralle,

i have had problems with loss of data also, also some with decal files.
I have done the following: Master work is done on hard drive. After each change i put an update on an USB stick. Also i have put together a folder in which i keep high-resolution printouts of the files, so in case BOTH data carriers are lost i still have a backup.

That'*s the best way to guarantee an endless life of your HDD, a law of nature is that stuff that is available twice will never break :-)