I'm attempting to move some mp3s from my flatmate's computer to mine, via a 4gb memory stick. I've been allowed to move some, but they suddenly started saying "cannot copy [filename]: the directory or file cannot be created". They're all comlete files, I've error-checked the memory stick, I can open them and move them to other folders on the same drive, i can delete them, which makes me think it's the memory stick. Please can anyone help?