error code -50

I'm trying to copy some music files from my mac pro hard drive to a ReadyNAS, which is using AFP file protocol.

I can copy the files one at a time, but if I try to copy many of them at once I get the error code -50 message.

I am absolutely tearing my hair out.

Any help please!

 

I'd already picked your previous post up when I was searching for how to deal with this issue.

I suspect the problem is with the ReadyNAS.

Wretched thing