Currently Being ModeratedFeb 15, 2013 12:52 PM (in response to monoking)
What errors do you get, what happens instead?
have you tried dragging them instead of copying and pasting them?
You might have a permissions issue with the external that could be preventing you to copy to it.
can you drag other files to it?
then it is the files themselves that you are dragging that need to be changed.