I've sent it to them to have a look at it. They said that often a file gets corrupted and they can fix that OK for nix, or worse case scenario if it is totally buggered they will rejig it for the cost of an upgrade.
I tried the card in both units I have and same in both.
As I said I never attempted to copy it but I did put it in the card reader to see if I could read it on my PC, they say that this is all you need to do...
I can only repeat what they tell me, I have no idea.